Bump benchmark-action/github-action-benchmark from 1.20.3 to 1.20.4

Bumps [benchmark-action/github-action-benchmark](https://github.com/benchmark-action/github-action-benchmark) from 1.20.3 to 1.20.4.
- [Release notes](https://github.com/benchmark-action/github-action-benchmark/releases)
- [Changelog](https://github.com/benchmark-action/github-action-benchmark/blob/master/CHANGELOG.md)
- [Commits](benchmark-action/github-action-benchmark@v1.20.3...v1.20.4)

---
updated-dependencies:
- dependency-name: benchmark-action/github-action-benchmark
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

.github/workflows/benchs.yml

@@ -74,7 +74,7 @@ jobs:
           cat .jvmopts
 
       - name: Store benchmark result
-        uses: benchmark-action/[email protected].3
+        uses: benchmark-action/[email protected].4
         with:
           name: JMH Benchmark
           tool: 'jmh'