Add tested support for PHP 8.5

Author: olivervogel

.github/workflows/run-tests.yml

@@ -8,7 +8,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php: [ '8.1', '8.2', '8.3', '8.4' ]
+        php: [ '8.1', '8.2', '8.3', '8.4', '8.5' ]
         stability: [ prefer-stable ]
 
     name: PHP ${{ matrix.php }} - ${{ matrix.stability }}
@@ -50,4 +50,4 @@ jobs:
         run: vendor/bin/phpstan
 
       - name: Validate coding standards
-        run: vendor/bin/phpcs
+        run: vendor/bin/phpcs