ci: run the step of workflow if the notification job starts

Author: zimeg

.github/workflows/tests.yml

@@ -82,12 +82,12 @@ jobs:
           token: ${{ secrets.CODECOV_TOKEN }}
           verbose: true
   notifications:
+    name: Notifications
     runs-on: ubuntu-latest
     needs: build
     if: failure()
     steps:
       - name: Send notifications of failing tests
-        if: failure()
         uses: slackapi/slack-github-action@b0fa283ad8fea605de13dc3f449259339835fc52 # v2.1.0
         with:
           errors: true