build: add php 8 support

Author: Jasonej

.github/workflows/tests.yml

@@ -7,7 +7,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        php: [7.4]
+        php: [7.4, 8.0]
         stability: [prefer-lowest, prefer-stable]
     name: PHP ${{ matrix.php }} - ${{ matrix.stability }}
     steps:

composer.json

@@ -20,7 +20,7 @@
         }
     },
     "require": {
-        "php": "^7.4",
+        "php": "^7.4|^8.0",
         "laravel/framework": "^7.0|^8.0"
     },
     "require-dev": {