Remove deprecation in github action

Author: Pierstoval

.github/workflows/php.yml

@@ -51,7 +51,7 @@ jobs:
             - run: composer validate
 
             - id: composer-cache
-              run: echo "::set-output name=dir::$(composer config cache-files-dir)"
+              run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
 
             - uses: actions/cache@v3
               with: