Remove pull_request_review from CI triggers

.github/workflows/php.yml

@@ -1,5 +1,5 @@
 name: Testing Friendica
-on: [push, pull_request, pull_request_review]
+on: [push, pull_request]
 
 jobs:
   friendica:
@@ -97,4 +97,4 @@ jobs:
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v1
         with:
-          file: clover.xml
+          file: clover.xml