remove v8.4 its not stable

Author: joshmanders

.github/workflows/tests.yaml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php: [8.1, 8.2, 8.3, 8.4]
+        php: [8.1, 8.2, 8.3]
         laravel: [10.*, 11.*]
         include:
           - laravel: 10.*