Bump softprops/action-gh-release from 2.0.3 to 2.0.4 (#782)

Bumps [softprops/action-gh-release](https://github.com/softprops/action-gh-release) from 2.0.3 to 2.0.4.
- [Release notes](https://github.com/softprops/action-gh-release/releases)
- [Changelog](https://github.com/softprops/action-gh-release/blob/master/CHANGELOG.md)
- [Commits](softprops/action-gh-release@3198ee1...9d7c94c)

---
updated-dependencies:
- dependency-name: softprops/action-gh-release
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/build-test-publish.yml

@@ -238,7 +238,7 @@ jobs:
       with:
         name: operator-manifests
     - name: Release
-      uses: softprops/action-gh-release@3198ee18f814cdf787321b4a32a26ddbf37acc52
+      uses: softprops/action-gh-release@9d7c94cfd0a1f3ed45544c887983e9fa900f0564
       if: startsWith(github.ref, 'refs/tags/')
       with:
         files: |