Switch reqwest TLS backend to rustls

Replace reqwest feature 'native-tls-vendored' with 'rustls-tls' in Cargo.toml to use a rustls-based TLS stack. Cargo.lock was regenerated/updated to reflect the new TLS backend and associated dependency version changes.

Author: JR-1991

Cargo.lock

@@ -22,7 +22,7 @@ minijinja-embed = "2.0.1"
 clap = { version = "4.5.4", features = ["derive"] }
 lazy_static = "1.4.0"
 gray_matter = "0.3.2"
-reqwest = { version = "0.12.4", features = ["blocking", "native-tls-vendored"] }
+reqwest = { version = "0.12.4", features = ["blocking", "rustls-tls"] }
 log = "0.4.21"
 pretty_env_logger = "0.5.0"
 colored = "3.0.0"