Change upload job runs-on to macOS and cleanup workspace after uploaded

Author: CodeNinjaEvan

.github/workflows/build.yml

@@ -202,6 +202,7 @@ jobs:
           tar --create --file ../solc-bin-binaries.tar *
 
       - name: Upload to S3
+        shell: bash -el {0}
         env:
           S3_BUCKET_PROD: ${{ secrets.S3_BUCKET_PROD }}
           S3_BUCKET_TEST: ${{ secrets.S3_BUCKET_TEST }}
@@ -220,4 +221,4 @@ jobs:
           aws s3 cp solc-static-linux "s3://${bucket}/${{ github.sha }}/" --only-show-errors
           aws s3 cp soljson.js "s3://${bucket}/${{ github.sha }}/" --only-show-errors
           
-          cd .. && rm -rf github solc-bin *.tar
+          cd .. && rm -rf github solc-bin *.tar