replace quansight-labs/setup-python with actions/setup-python (#5007)

Author: ngoldbaum

.github/workflows/ci.yml

@@ -592,8 +592,7 @@ jobs:
       - uses: dtolnay/rust-toolchain@stable
         with:
           components: rust-src
-      # TODO: replace with actions/setup-python when there is support
-      - uses: quansight-labs/[email protected]
+      - uses: actions/[email protected]
         with:
           python-version: "3.13t"
       - name: Install cargo-llvm-cov