Add test to php82 (#4)

Author: cesargb

.github/workflows/tests.yml

@@ -13,7 +13,7 @@ jobs:
 
     strategy:
       matrix:
-        php-versions: ['8.0', '8.1']
+        php-versions: ['8.2', '8.1', '8.0']
 
     steps:
     - uses: actions/checkout@v2