Update run-tests.yml

update php version

Author: bpedroza

.github/workflows/run-tests.yml

@@ -12,7 +12,12 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
+    - name: Setup PHP
+      id: setup-php
+      uses: shivammathur/setup-php@v2
+      with:
+        php-version: '8.4'
 
     - name: Validate composer.json and composer.lock
       run: composer validate