revert laravel 8 support

Author: veneliniliev

.github/workflows/test.yml

@@ -6,7 +6,7 @@ jobs:
     strategy:
       matrix:
         php-version: ['8.0', '8.1']
-        laravel-version: ['^9']
+        laravel-version: ['^8', '^9']
     steps:
       - name: Setup PHP
         uses: shivammathur/setup-php@v2

composer.json

@@ -19,9 +19,9 @@
     ],
     "require": {
         "php": "^8.0.2",
-        "illuminate/contracts": "^9.0",
-        "illuminate/http": "^9.0",
-        "illuminate/support": "^9.0"
+        "illuminate/contracts": "^8.0|^9.0",
+        "illuminate/http": "^8.0|^9.0",
+        "illuminate/support": "^8.0|^9.0"
     },
     "require-dev": {
         "orchestra/testbench": "^7.0",