Merge pull request #3 from sunrise-php/renovate/phpunit-phpunit-7.x

Update dependency phpunit/phpunit to v7.5.1

Author: sunrise-php

composer.json

@@ -14,7 +14,7 @@
 		"ext-intl": "*"
 	},
 	"require-dev": {
-		"phpunit/phpunit": "7.4.3"
+		"phpunit/phpunit": "7.5.1"
 	},
 	"autoload": {
 		"psr-4": {