restore to main branch after tested

.github/workflows/publish-test-results.yaml

@@ -46,10 +46,10 @@ jobs:
       - name: Notify slack of test results
         uses: archive/github-actions-slack@d9dae40827adf93bddf939db6552d1e392259d7d # v2.7.0
         id: slack
-        if: ${{ steps.test-report.outcome == 'failure' && github.ref == 'refs/heads/smoke-test-failures-notify' }}
+        if: ${{ steps.test-report.outcome == 'failure' && github.ref == 'refs/heads/main' }}
         with:
           slack-bot-user-oauth-access-token: ${{ secrets.SLACK_BOT_TOKEN }}
           slack-channel: C063ZPPJC5U # tmp-tolerant-failures
           slack-text: |
             :sad-parrot: The <https://github.com/weaveworks/weave-gitops-enterprise/commit/${{ github.sha }}|latest commit> from ${{ github.actor }} is failing on main. <https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}|Click here> and weep. Then fix the underlying issue and ensure main remains green.
-          slack-optional-icon_url: "https://avatars.githubusercontent.com/u/9976052"
+          slack-optional-icon_url: "https://avatars.githubusercontent.com/u/9976052"