Fix auto-merge condition in workflow

- Adjust failure condition to only disable auto-merge for pull requests.

Author: kpavlov

.github/workflows/build.yml

@@ -42,7 +42,7 @@ jobs:
           path: '**/build/test-results/test/*.xml'
 
       - name: Disable Auto-Merge on Fail
-        if: failure() && github.event_name != 'pull_request'
+        if: failure() && github.event_name == 'pull_request'
         run: gh pr merge --disable-auto "$PR_URL"
         env:
           PR_URL: ${{github.event.pull_request.html_url}}