update GH action cache v3

.github/workflows/php.yml

@@ -72,7 +72,7 @@ jobs:
 
           # Add composer local folder in cache to make next builds faster
           - name: Cache composer folder
-            uses: actions/cache@v1
+            uses: actions/cache@v3
             with:
               path: ~/.composer/cache
               key: php-composer-cache