Update composer.json

Author: rennokki

composer.json

@@ -12,7 +12,7 @@
         }
     ],
     "require": {
-        "php": "^7.2",
+        "php": "^7.3|^8.0",
         "renoki-co/php-k8s": "^1.0"
     },
     "autoload": {
@@ -29,9 +29,10 @@
         "test": "vendor/bin/phpunit"
     },
     "require-dev": {
-        "laravel/legacy-factories": "^1.0.4",
-        "orchestra/testbench": "^4.0|^5.0|^6.0",
-        "orchestra/database": "^4.0|^5.0|^6.0"
+        "laravel/legacy-factories": "^1.1",
+        "mockery/mockery": "^1.4",
+        "orchestra/testbench": "^5.0|^6.0",
+        "orchestra/database": "^5.0|^6.0"
     },
     "config": {
         "sort-packages": true