Add Laravel 11 support (#23)

* drop L9, add L11 support

* bump PHP version

* bump archtechx/helpers dependency

* add setup-php to all ci jobs

.github/workflows/ci.yml

@@ -16,14 +16,14 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        laravel: [9, 10]
+        laravel: [10, 11]
 
     steps:
     - uses: actions/checkout@v2
     - name: Setup PHP
       uses: shivammathur/setup-php@v2
       with:
-        php-version: '8.1'
+        php-version: '8.2'
     - name: Install composer dependencies
       run: composer require "illuminate/support:^${{ matrix.laravel }}.0"
     - name: Run tests
@@ -35,6 +35,10 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+    - name: Setup PHP
+      uses: shivammathur/setup-php@v2
+      with:
+        php-version: '8.2'
     - name: Install composer dependencies
       run: composer install
     - name: Run phpstan
@@ -45,6 +49,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: '8.2'
       - name: Install php-cs-fixer
         run: composer global require friendsofphp/php-cs-fixer
       - name: Run php-cs-fixer