Update composer and phpunit

Author: maab16

composer.json

@@ -12,14 +12,14 @@
     "minimum-stability": "dev",
     "require": {
         "php": "^7.2",
-        "laravel/framework": "~5.5|~6.0",
+        "illuminate/support": "^6.0",
         "doctrine/dbal": "^2.10",
         "laravel/passport": "^8.0",
         "codexshaper/database-backup-restore": "^1.1"
     },
     "require-dev": {
         "phpunit/phpunit": "^8.0",
-        "laravel/framework": "~5.5|~6.0",
+        "laravel/framework": "^6.0",
         "orchestra/testbench": "^4.0"
     },
     "autoload": {

phpunit.xml

@@ -28,7 +28,8 @@
         </whitelist>
     </filter>
     <php>
-        <env name="API_KEY" value=""/>
-        <env name="DEFAULT_TOKEN" value=""/>
+        <env name="APP_ENV" value="testing"/>
+        <env name="CACHE_DRIVER" value="array"/>
+        <env name="SESSION_DRIVER" value="array"/>
     </php>
 </phpunit>