update carbon 3

Author: tanghengzhi

.github/workflows/run-tests.yml

@@ -25,7 +25,7 @@ jobs:
             carbon: ^2.72.2
           - laravel: 12.*
             testbench: 10.*
-            carbon: ^3.0
+            carbon: ^3.8.4
         exclude:
           - Laravel: 10.*
             php: 8.4