Extend testing matrix

Include PHP 8.2-8.4

Author: weirdan

.github/workflows/ci.yml

@@ -104,7 +104,7 @@ jobs:
         continue-on-error: ${{matrix.php == '8.0'}}
         strategy:
             matrix:
-                php: ['7.4', '8.0', '8.1']
+                php: ['7.4', '8.0', '8.1', '8.2', '8.3', '8.4']
                 deps: ['high', 'low', 'stable']
             fail-fast: false
         steps: