Bump ldez/gha-mjolnir from 1.4.1 to 1.5.0

Bumps [ldez/gha-mjolnir](https://github.com/ldez/gha-mjolnir) from 1.4.1 to 1.5.0.
- [Release notes](https://github.com/ldez/gha-mjolnir/releases)
- [Changelog](https://github.com/ldez/gha-mjolnir/blob/main/.goreleaser.yml)
- [Commits](ldez/gha-mjolnir@v1.4.1...v1.5.0)

---
updated-dependencies:
- dependency-name: ldez/gha-mjolnir
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

.github/workflows/close_issues_on_merge.yml

@@ -14,6 +14,6 @@ jobs:
 
     steps:
       - name: Closes issues related to a merged pull request.
-        uses: ldez/gha-mjolnir@v1.4.1
+        uses: ldez/gha-mjolnir@v1.5.0
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}