Bump softprops/action-gh-release from 2.0.2 to 2.0.4 (#49)

Bumps [softprops/action-gh-release](https://github.com/softprops/action-gh-release) from 2.0.2 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@d99959e...9d7c94c)

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

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

.github/workflows/release.yaml

@@ -22,7 +22,7 @@ jobs:
       run: git show HEAD --format='%s%n%n%b' -s > .release_body
 
     - name: Generate release notes
-      uses: softprops/action-gh-release@d99959edae48b5ffffd7b00da66dcdb0a33a52ee # v2.0.2
+      uses: softprops/action-gh-release@9d7c94cfd0a1f3ed45544c887983e9fa900f0564 # v2.0.4
       with:
         generate_release_notes: true
         body_path: .release_body