run phpcs also on pull_requests

.github/workflows/phpcs.yml

@@ -1,5 +1,7 @@
 name: PHP_CodeSniffer
-on: push
+on:
+  push:
+  pull_request:
 jobs:
   phpcs:
     runs-on: ubuntu-latest
@@ -19,7 +21,7 @@ jobs:
         uses: pat-s/always-upload-cache@v1.1.4
         with:
           path: ${{ steps.composer-cache.outputs.dir }}
-          # Use the hash of composer.json as the key for your cache if you do not commit composer.lock. 
+          # Use the hash of composer.json as the key for your cache if you do not commit composer.lock.
           key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.json') }}
           #key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
           restore-keys: ${{ runner.os }}-composer-

.github/workflows/phpunit.yml

@@ -1,7 +1,7 @@
 name: Unit Testing
 on:
-    push:
-    pull_request:
+  push:
+  pull_request:
 jobs:
   phpunit:
     runs-on: ubuntu-latest