Update codecov/codecov-action action to v5

Author: renovate[bot]

.github/workflows/codecov.yml

@@ -22,7 +22,7 @@ jobs:
           go test `go list ./... | grep -v examples` -coverprofile=coverage.txt -covermode=atomic
 
       - name: Upload coverage report
-        uses: codecov/codecov-action@v4.5.0
+        uses: codecov/codecov-action@v5.3.1
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           file: ./coverage.txt