ci: add phpunit dependency update to ci

.github/workflows/run-tests.yml

@@ -19,10 +19,13 @@ jobs:
         include:
           - laravel: 9.*
             testbench: 7.*
+            phpunit: ^9.5.10
           - laravel: 10.*
             testbench: 8.*
+            phpunit: ^9.6
           - laravel: 11.*
             testbench: 9.*
+            phpunit: ^10.5
 
     name: P${{ matrix.php }} - L${{ matrix.laravel }} - ${{ matrix.stability }} - ${{ matrix.os }}
     steps:
@@ -43,8 +46,8 @@ jobs:
 
       - name: Install dependencies
         run: |
-          composer require "laravel/framework:${{ matrix.laravel }}" "orchestra/testbench:${{ matrix.testbench }}" --no-interaction --no-update
-          composer update --${{ matrix.stability }} --prefer-dist --no-interaction --with-all-dependencies
+          composer require "laravel/framework:${{ matrix.laravel }}" "orchestra/testbench:${{ matrix.testbench }}" "phpunit/phpunit:${{ matrix.phpunit }}" --no-interaction --no-update
+          composer update --${{ matrix.stability }} --prefer-dist --no-interaction
 
       - name: List Installed Dependencies
         run: composer show -D