Bump softprops/action-gh-release from 1 to 2

Bumps [softprops/action-gh-release](https://github.com/softprops/action-gh-release) from 1 to 2.
- [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@v1...v2)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/generate-mrpack.yaml

@@ -19,6 +19,6 @@ jobs:
           OUTPUT_PATH=$(nix build .#modrinth-pack --print-out-paths)
           echo "OUTPUT_PATH=$OUTPUT_PATH" >> $GITHUB_ENV
       - name: Upload mrpack
-        uses: softprops/action-gh-release@v1
+        uses: softprops/action-gh-release@v2
         with:
           files: "${{ env.OUTPUT_PATH }}/*"