Merge pull request #4558 from IntersectMBO/nm/ci-artifact-slimming

Stop including VCS directories in data passed to test jobs

.github/workflows/haskell.yml

@@ -160,7 +160,7 @@ jobs:
     - name: Archive working directory
       # pax format is needed to avoid unnecessary rebuilding, because the
       # default format uses a one-second resolution for timestamps
-      run: tar --use-compress-program zstdmt --format pax -cf /var/tmp/state.tzst . && mv /var/tmp/state.tzst .
+      run: tar --use-compress-program zstdmt --format posix --exclude-vcs -cf /var/tmp/state.tzst . && mv /var/tmp/state.tzst .
     - name: Upload working directory archive
       # upload-artifact is pinned to avoid a bug in download-artifact
       # See https://github.com/actions/download-artifact/issues/328