Use download tar artifact for Android stdlib (#911)

This was missed in #907

Author: Steelskin

.github/workflows/swift-toolchain.yml

@@ -3626,7 +3626,7 @@ jobs:
             triple_no_api_level: x86_64-unknown-linux-android
 
     steps:
-      - uses: actions/download-artifact@v4
+      - uses: thebrowsercompany/gha-download-tar-artifact@59992d91335d4ecba543c8535f7d07238e42125d # main
         # There is currently no Android NDK for Windows ARM64 so build Android only on Windows X64 host only
         if: inputs.build_android
         with: