Update mikepenz/action-junit-report action to v6

Author: renovate[bot]

.github/workflows/unit-test.yml

@@ -29,7 +29,7 @@ jobs:
         run: ./gradlew check
 
       - name: Publish test report
-        uses: mikepenz/action-junit-report@3585e9575db828022551b4231f165eb59a0e74e3 # v5
+        uses: mikepenz/action-junit-report@e08919a3b1fb83a78393dfb775a9c37f17d8eea6 # v6
         if: always()
         with:
           annotate_only: true