[4.x] Restrict GitHub Actions matrix to PHP 8.5 only in tests workflow

Author: andrey-helldar

.github/workflows/tests.yml

@@ -9,7 +9,7 @@ jobs:
         strategy:
             fail-fast: true
             matrix:
-                php: [ "8.2", "8.3", "8.4", "8.5" ]
+                php: [ "8.5" ]
 
         name: PHP ${{ matrix.php }}