Bump --python-platform linux to manylinux_2_28 (#14300)

## Summary

Right now, `--python-platform linux` to defaults to `manylinux_2_17`.
Defaulting to `manylinux_2_17` causes some problems for users, since it
means we can't use (e.g.) `manylinux_2_28` wheels, and end up having to
build from source.

cibuildwheel made `manylinux_2_28` their default in
pypa/cibuildwheel#1988, and there's a lot of
discussion in pypa/cibuildwheel#1772 and
pypa/cibuildwheel#2047. In short, the
`manylinux_2014` image is EOL, and the vast majority of consumers now
run at least glibc 2.28 (https://mayeut.github.io/manylinux-timeline/):

![Screenshot 2025-06-26 at 7 47
23 PM](https://github.com/user-attachments/assets/2672d91b-f9eb-4442-b680-7e4cd7cade91)

Note that this only changes the _default_. Users can still compile
against `manylinux_2_17` by specifying it.

Author: charliermarsh

crates/uv-configuration/src/target_triple.rs

@@ -33,7 +33,7 @@ pub enum TargetTriple {
     #[serde(rename = "i686-pc-windows-msvc")]
     I686PcWindowsMsvc,
 
-    /// An x86 Linux target. Equivalent to `x86_64-manylinux_2_17`.
+    /// An x86 Linux target. Equivalent to `x86_64-manylinux_2_28`.
     #[cfg_attr(feature = "clap", value(name = "x86_64-unknown-linux-gnu"))]
     #[serde(rename = "x86_64-unknown-linux-gnu")]
     #[serde(alias = "x8664-unknown-linux-gnu")]
@@ -56,7 +56,7 @@ pub enum TargetTriple {
     #[serde(alias = "x8664-apple-darwin")]
     X8664AppleDarwin,
 
-    /// An ARM64 Linux target. Equivalent to `aarch64-manylinux_2_17`.
+    /// An ARM64 Linux target. Equivalent to `aarch64-manylinux_2_28`.
     #[cfg_attr(feature = "clap", value(name = "aarch64-unknown-linux-gnu"))]
     #[serde(rename = "aarch64-unknown-linux-gnu")]
     Aarch64UnknownLinuxGnu,
@@ -240,7 +240,7 @@ impl TargetTriple {
             Self::Linux | Self::X8664UnknownLinuxGnu => Platform::new(
                 Os::Manylinux {
                     major: 2,
-                    minor: 17,
+                    minor: 28,
                 },
                 Arch::X86_64,
             ),
@@ -262,7 +262,7 @@ impl TargetTriple {
             Self::Aarch64UnknownLinuxGnu => Platform::new(
                 Os::Manylinux {
                     major: 2,
-                    minor: 17,
+                    minor: 28,
                 },
                 Arch::Aarch64,
             ),

crates/uv/tests/it/pip_compile.rs

@@ -14823,7 +14823,7 @@ fn invalid_platform() -> Result<()> {
     uv_snapshot!(context
         .pip_compile()
         .arg("--python-platform")
-        .arg("linux")
+        .arg("x86_64-manylinux_2_17")
         .arg("requirements.in"), @r"
     success: false
     exit_code: 1

docs/reference/cli.md

@@ -1678,10 +1678,10 @@ interpreter. Use <code>--universal</code> to display the tree for all platforms,
 <li><code>macos</code>:  An alias for <code>aarch64-apple-darwin</code>, the default target for macOS</li>
 <li><code>x86_64-pc-windows-msvc</code>:  A 64-bit x86 Windows target</li>
 <li><code>i686-pc-windows-msvc</code>:  A 32-bit x86 Windows target</li>
-<li><code>x86_64-unknown-linux-gnu</code>:  An x86 Linux target. Equivalent to <code>x86_64-manylinux_2_17</code></li>
+<li><code>x86_64-unknown-linux-gnu</code>:  An x86 Linux target. Equivalent to <code>x86_64-manylinux_2_28</code></li>
 <li><code>aarch64-apple-darwin</code>:  An ARM-based macOS target, as seen on Apple Silicon devices</li>
 <li><code>x86_64-apple-darwin</code>:  An x86 macOS target</li>
-<li><code>aarch64-unknown-linux-gnu</code>:  An ARM64 Linux target. Equivalent to <code>aarch64-manylinux_2_17</code></li>
+<li><code>aarch64-unknown-linux-gnu</code>:  An ARM64 Linux target. Equivalent to <code>aarch64-manylinux_2_28</code></li>
 <li><code>aarch64-unknown-linux-musl</code>:  An ARM64 Linux target</li>
 <li><code>x86_64-unknown-linux-musl</code>:  An <code>x86_64</code> Linux target</li>
 <li><code>x86_64-manylinux2014</code>:  An <code>x86_64</code> target for the <code>manylinux2014</code> platform. Equivalent to <code>x86_64-manylinux_2_17</code></li>
@@ -3363,10 +3363,10 @@ by <code>--python-version</code>.</p>
 <li><code>macos</code>:  An alias for <code>aarch64-apple-darwin</code>, the default target for macOS</li>
 <li><code>x86_64-pc-windows-msvc</code>:  A 64-bit x86 Windows target</li>
 <li><code>i686-pc-windows-msvc</code>:  A 32-bit x86 Windows target</li>
-<li><code>x86_64-unknown-linux-gnu</code>:  An x86 Linux target. Equivalent to <code>x86_64-manylinux_2_17</code></li>
+<li><code>x86_64-unknown-linux-gnu</code>:  An x86 Linux target. Equivalent to <code>x86_64-manylinux_2_28</code></li>
 <li><code>aarch64-apple-darwin</code>:  An ARM-based macOS target, as seen on Apple Silicon devices</li>
 <li><code>x86_64-apple-darwin</code>:  An x86 macOS target</li>
-<li><code>aarch64-unknown-linux-gnu</code>:  An ARM64 Linux target. Equivalent to <code>aarch64-manylinux_2_17</code></li>
+<li><code>aarch64-unknown-linux-gnu</code>:  An ARM64 Linux target. Equivalent to <code>aarch64-manylinux_2_28</code></li>
 <li><code>aarch64-unknown-linux-musl</code>:  An ARM64 Linux target</li>
 <li><code>x86_64-unknown-linux-musl</code>:  An <code>x86_64</code> Linux target</li>
 <li><code>x86_64-manylinux2014</code>:  An <code>x86_64</code> target for the <code>manylinux2014</code> platform. Equivalent to <code>x86_64-manylinux_2_17</code></li>
@@ -3620,10 +3620,10 @@ be used with caution, as it can modify the system Python installation.</p>
 <li><code>macos</code>:  An alias for <code>aarch64-apple-darwin</code>, the default target for macOS</li>
 <li><code>x86_64-pc-windows-msvc</code>:  A 64-bit x86 Windows target</li>
 <li><code>i686-pc-windows-msvc</code>:  A 32-bit x86 Windows target</li>
-<li><code>x86_64-unknown-linux-gnu</code>:  An x86 Linux target. Equivalent to <code>x86_64-manylinux_2_17</code></li>
+<li><code>x86_64-unknown-linux-gnu</code>:  An x86 Linux target. Equivalent to <code>x86_64-manylinux_2_28</code></li>
 <li><code>aarch64-apple-darwin</code>:  An ARM-based macOS target, as seen on Apple Silicon devices</li>
 <li><code>x86_64-apple-darwin</code>:  An x86 macOS target</li>
-<li><code>aarch64-unknown-linux-gnu</code>:  An ARM64 Linux target. Equivalent to <code>aarch64-manylinux_2_17</code></li>
+<li><code>aarch64-unknown-linux-gnu</code>:  An ARM64 Linux target. Equivalent to <code>aarch64-manylinux_2_28</code></li>
 <li><code>aarch64-unknown-linux-musl</code>:  An ARM64 Linux target</li>
 <li><code>x86_64-unknown-linux-musl</code>:  An <code>x86_64</code> Linux target</li>
 <li><code>x86_64-manylinux2014</code>:  An <code>x86_64</code> target for the <code>manylinux2014</code> platform. Equivalent to <code>x86_64-manylinux_2_17</code></li>
@@ -3902,10 +3902,10 @@ should be used with caution, as it can modify the system Python installation.</p
 <li><code>macos</code>:  An alias for <code>aarch64-apple-darwin</code>, the default target for macOS</li>
 <li><code>x86_64-pc-windows-msvc</code>:  A 64-bit x86 Windows target</li>
 <li><code>i686-pc-windows-msvc</code>:  A 32-bit x86 Windows target</li>
-<li><code>x86_64-unknown-linux-gnu</code>:  An x86 Linux target. Equivalent to <code>x86_64-manylinux_2_17</code></li>
+<li><code>x86_64-unknown-linux-gnu</code>:  An x86 Linux target. Equivalent to <code>x86_64-manylinux_2_28</code></li>
 <li><code>aarch64-apple-darwin</code>:  An ARM-based macOS target, as seen on Apple Silicon devices</li>
 <li><code>x86_64-apple-darwin</code>:  An x86 macOS target</li>
-<li><code>aarch64-unknown-linux-gnu</code>:  An ARM64 Linux target. Equivalent to <code>aarch64-manylinux_2_17</code></li>
+<li><code>aarch64-unknown-linux-gnu</code>:  An ARM64 Linux target. Equivalent to <code>aarch64-manylinux_2_28</code></li>
 <li><code>aarch64-unknown-linux-musl</code>:  An ARM64 Linux target</li>
 <li><code>x86_64-unknown-linux-musl</code>:  An <code>x86_64</code> Linux target</li>
 <li><code>x86_64-manylinux2014</code>:  An <code>x86_64</code> target for the <code>manylinux2014</code> platform. Equivalent to <code>x86_64-manylinux_2_17</code></li>