fix(github): correct operators

Author: k3ii

.github/workflows/update-contributors.yml

@@ -7,7 +7,7 @@ on:
 
 jobs:
   update-contributors:
-    if: github.event_name == 'pull_request' || github.event_name == 'closed' && github.event.pull_request.merged == true
+    if: github.event_name == 'pull_request' && github.event_name == 'closed' && github.event.pull_request.merged == true
     runs-on: ubuntu-latest
 
     steps: