Updates for Cake4 compatibility

Author: burzum

composer.json

@@ -13,12 +13,13 @@
 	],
 	"minimum-stability": "stable",
 	"require": {
+		"php": "^7.2",
 		"cakephp/cakephp": "^4.0",
 		"ezyang/htmlpurifier": "*",
 		"cakephp/cakephp-codesniffer": "^3.0"
 	},
 	"require-dev": {
-		"phpunit/phpunit": "6.*"
+		"phpunit/phpunit": "~8.5.0"
 	},
 	"autoload": {
 		"psr-4": {