Fix piping in yml (#84042)

Author: hoyosjs

.github/workflows/check-service-labels.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Check servicing labels
-      run:
+      run: |
         if [ "${{ contains(github.event.pull_request.labels.*.name, 'Servicing-approved') }}" = "true" ]; then
           exit 0
         else