Bump mikepenz/action-junit-report from 5 to 6

Bumps [mikepenz/action-junit-report](https://github.com/mikepenz/action-junit-report) from 5 to 6.
- [Release notes](https://github.com/mikepenz/action-junit-report/releases)
- [Commits](mikepenz/action-junit-report@v5...v6)

---
updated-dependencies:
- dependency-name: mikepenz/action-junit-report
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -43,7 +43,7 @@ jobs:
           mix test
 
       - name: Publish Results
-        uses: mikepenz/action-junit-report@v5
+        uses: mikepenz/action-junit-report@v6
         if: ${{ failure() }}
         with:
           check_name: Test Results