Update GitHub Actions workflows for Filament v5

- Add release/5.x branch to workflow triggers
- Add PHP 8.3 to test matrix
- Add Laravel 12.* support to test matrix
- Update Testbench from 9.* to 10.*
- Update PHPStan to use PHP 8.3

Author: Baspa

.github/workflows/phpstan.yml

@@ -16,7 +16,7 @@ jobs:
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
         with:
-          php-version: '8.2'
+          php-version: '8.3'
           coverage: none
 
       - name: Install composer dependencies

.github/workflows/run-tests.yml

@@ -2,9 +2,9 @@ name: run-tests
 
 on:
   push:
-    branches: [main]
+    branches: [main, release/5.x]
   pull_request:
-    branches: [main]
+    branches: [main, release/5.x]
 
 jobs:
   test:
@@ -13,12 +13,15 @@ jobs:
       fail-fast: true
       matrix:
         os: [ubuntu-latest, windows-latest]
-        php: [8.2]
-        laravel: [11.*]
+        php: [8.3, 8.2]
+        laravel: [11.*, 12.*]
         stability: [prefer-lowest, prefer-stable]
         include:
           - laravel: 11.*
-            testbench: 9.*
+            testbench: 10.*
+            carbon: 3.*
+          - laravel: 12.*
+            testbench: 10.*
             carbon: 3.*
 
     name: P${{ matrix.php }} - L${{ matrix.laravel }} - ${{ matrix.stability }} - ${{ matrix.os }}