Update codecov/codecov-action action to v5

Author: renovate[bot]

.github/workflows/full_cluster_tests.yml

@@ -38,7 +38,7 @@ jobs:
       - name: Download artifacts
         uses: actions/download-artifact@v4
       - name: Upload coverage reports to Codecov
-        uses: codecov/codecov-action@v4
+        uses: codecov/codecov-action@v5
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           # file: ./coverage.xml  # Search for all coverage files from each workflow.