remove Laravel 6

Author: abrardev99

.github/workflows/ci.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        laravel: [6, 8, 9]
+        laravel: [8, 9]
 
     steps:
       - name: Checkout code

composer.json

@@ -20,11 +20,11 @@
         }
     ],
     "require": {
-        "illuminate/database": "^6.0|^8.0|^9.0"
+        "illuminate/database": "^8.0|^9.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^8.4|^9.0",
-        "orchestra/testbench": "^4.0|^6.0|^7.0"
+        "orchestra/testbench": "^6.0|^7.0"
     },
     "minimum-stability": "dev",
     "prefer-stable": true