Add laravel v12 to CI

Author: asanikovich

.github/workflows/main.yml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       matrix:
         php: [8.2, 8.3, 8.4]
-        laravel: [10, 11]
+        laravel: [10, 11, 12]
 
     steps:
       - name: Checkout code