Lint more PHP versions

Author: aristath

.github/workflows/lint.yml

@@ -24,7 +24,7 @@ jobs:
 
     strategy:
       matrix:
-        php_version: ['7.4', '8.2', '8.3', '8.4']
+        php_version: ['7.4', '8.0', '8.1', '8.2', '8.3', '8.4']
 
     name: "Lint: PHP ${{ matrix.php_version }}"