chore(deps): bump eps1lon/actions-label-merge-conflict (#11113)

Bumps [eps1lon/actions-label-merge-conflict](https://github.com/eps1lon/actions-label-merge-conflict) from 2.1.0 to 3.0.0.
- [Release notes](https://github.com/eps1lon/actions-label-merge-conflict/releases)
- [Changelog](https://github.com/eps1lon/actions-label-merge-conflict/blob/main/CHANGELOG.md)
- [Commits](https://github.com/eps1lon/actions-label-merge-conflict/compare/v2.1.0...v3.0.0)

---
updated-dependencies:
- dependency-name: eps1lon/actions-label-merge-conflict
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/detect-conflicting-prs.yml

@@ -29,7 +29,7 @@ jobs:
 
       - name: Label conflicting PRs that are open
         id: pr-labeler
-        uses: eps1lon/actions-label-merge-conflict@v2.1.0
+        uses: eps1lon/actions-label-merge-conflict@v3.0.0
         with:
           repoToken:  ${{ secrets.GITHUB_TOKEN }}
           retryAfter: 30 # seconds