update workflow

Author: JoeWang1127

.github/workflows/golang.yaml

@@ -39,7 +39,7 @@ jobs:
           GO_GAPIC_VERSION: 0.57.0
       - name: Run tests
         run: |
-          go test -race -coverprofile=coverage.out -covermode=atomic internal/librarian/golang
+          go test -race -coverprofile=coverage.out -covermode=atomic ./internal/librarian/golang
       - name: Upload coverage report
         uses: codecov/codecov-action@v5
         with: