rust: remove release version constraint for aarch64-unknown-linux-gnu

We started producing 3.8 builds for aarch64-unknown-linux-gnu a few
commits ago. Let's start releasing them.

Author: indygreg

src/release.rs

@@ -92,7 +92,7 @@ pub static RELEASE_TRIPLES: Lazy<BTreeMap<&'static str, TripleRelease>> = Lazy::
         TripleRelease {
             suffixes: linux_suffixes_nopgo.clone(),
             install_only_suffix: "lto",
-            python_version_requirement: Some(VersionReq::parse(">=3.9").unwrap()),
+            python_version_requirement: None,
         },
     );