Add PHP 8.1 Support (#7)

* Added PHP 8.1 to CI test matrix

* Bumped minimum dev dependencies

* Removed CI installing specific framework/testbench dependencies

Author: frankieeedeee

.github/workflows/tests.yml

@@ -11,7 +11,7 @@ jobs:
       fail-fast: true
       matrix:
         os: [ubuntu-latest, windows-latest]
-        php: [8.0, 7.4, 7.3]
+        php: [8.1, 8.0, 7.4, 7.3]
         stability: [prefer-lowest, prefer-stable]
 
     name: PHP ${{ matrix.php }} - ${{ matrix.stability }} - ${{ matrix.os }}
@@ -34,7 +34,6 @@ jobs:
 
       - name: Install dependencies
         run: |
-          composer require "laravel/framework:8.*" "orchestra/testbench:6.*" --no-interaction --no-update
           composer update --${{ matrix.stability }} --prefer-dist --no-interaction
 
       - name: Execute tests

composer.json

@@ -18,8 +18,8 @@
         "illuminate/support": "~8.0"
     },
     "require-dev": {
-        "orchestra/testbench": "^6.0",
-        "phpunit/phpunit": "^9.0"
+        "orchestra/testbench": "^6.22",
+        "phpunit/phpunit": "^9.5.10"
     },
     "autoload": {
         "psr-4": {