github: update codecov with token and fail_ci_if_error (#7348)

Author: arvindbr8

.github/workflows/coverage.yml

@@ -20,4 +20,7 @@ jobs:
         run: go test -coverprofile=coverage.out -coverpkg=./... ./...
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          fail_ci_if_error: true