feat: Set up tests with PHP 8.3

Author: lucasdotvin

.github/workflows/run-tests.yml

@@ -19,7 +19,7 @@ jobs:
       fail-fast: true
       matrix:
         os: [ubuntu-latest]
-        php: [8.1, 8.2]
+        php: [8.1, 8.2, 8.3]
         laravel: ['9.*', '10.*', '11.*']
         stability: [prefer-stable]
         include:
@@ -30,6 +30,8 @@ jobs:
           - laravel: 11.*
             testbench: ^9.0
         exclude:
+          - laravel: 9.*
+            php: 8.3
           - laravel: 11.*
             php: 8.1