update phpunit and orm versions

Author: Jason Horvath

composer.json

@@ -6,12 +6,12 @@
         "cakephp", "plugin", "lazy load"
     ],
     "require-dev": {
-        "phpunit/phpunit": "^5.7|^6.0",
+        "phpunit/phpunit": "^8.5",
         "cakephp/cakephp-codesniffer": "dev-master",
         "cakephp/cakephp": "^4.0"
     },
     "require": {
-        "cakephp/orm": ">=3.6.0 <4.0"
+        "cakephp/orm": "^4.0"
     },
     "autoload": {
         "psr-4": {