Revert "Update main.yml"

This reverts commit 075f6ebb170f5bfcb92e246192b312f62287b5a3.

.github/workflows/main.yml

@@ -28,7 +28,7 @@ jobs:
         #   container: ubuntu:24.04
         - name: linux-musl-x64
           runs-on: ubuntu-latest-xlarge
-          container: alpine:3.21
+          container: alpine:3.17
         # - name: osx-x64
         #   runs-on: macos-latest-large
         # - name: osx-arm64