Forgot to remove the default shell

Author: lazka

.github/workflows/generate-srcinfo.yml

@@ -12,9 +12,7 @@ jobs:
   update-srcinfo:
     runs-on: windows-latest
     if: ${{ github.repository == 'msys2/MINGW-packages' || github.event_name == 'workflow_dispatch' }}
-    defaults:
-      run:
-        shell: msys2 {0}
+
     steps:
       - uses: actions/checkout@v2
         with: