Merge pull request #18 from magento-trigger/test

Fix github workflow to use correct php version

Author: slavvka

.github/workflows/php.yml

@@ -14,6 +14,9 @@ jobs:
     steps:
     - uses: actions/checkout@v2
 
+    - name: Update PHP
+      run: sudo update-alternatives --set php /usr/bin/php7.2
+
     - name: Validate composer
       run: composer validate