[build] Monkey-patch s3fs botocore version mismatch on Python 3.9

Author: mxmlnkn

.github/workflows/tests.yml

@@ -310,7 +310,7 @@ jobs:
         #   Oldest and newest versions should be enough. Python versions are supported 5 years from release date.
         #   3.n is released October of 2011+n and EOL in 2016+n for n>=8.
         # Supported versions: https://github.com/actions/python-versions/blob/main/versions-manifest.json
-        python-version: ['3.9', '3.12', '3.14']
+        python-version: ['3.9', '3.10', '3.12', '3.14']
         libfuse-version: ['system']
         parallelization: [1, 2]
         include:

core/pyproject.toml

@@ -148,7 +148,10 @@ full = [
     "dropboxdrivefs",
     "fsspec",
     "ipfsspec",
-    "s3fs",
+    "s3fs == 2025.10.0; python_version < '3.10'",
+    "aiobotocore ~= 2.25; python_version < '3.10'",
+    "botocore ~= 1.40; python_version < '3.10'",
+    "s3fs; python_version >= '3.10'",
     "webdav4",
     #"gcsfs",  # untested
     #"adlfs",  # untested. build error in Python 3.13
@@ -174,7 +177,10 @@ fsspec-backends = [
     "dropboxdrivefs",
     "fsspec",
     "ipfsspec",
-    "s3fs",
+    "s3fs==2025.10.0; python_version < '3.10'",
+    "aiobotocore ~= 2.25; python_version < '3.10'",
+    "botocore ~= 1.40; python_version < '3.10'",
+    "s3fs; python_version >= '3.10'",
     "webdav4",
     #"gcsfs",  # untested
     #"adlfs",  # untested. build error in Python 3.13