Merge pull request #15 from WyriHaximus/dependabot/composer/phpunit/phpunit-8.0.4

Bump phpunit/phpunit from 7.5.2 to 8.0.4

Author: WyriHaximus

composer.json

@@ -18,7 +18,7 @@
     "localheinz/composer-normalize": "^1.0.0",
     "nunomaduro/collision": "^2.1",
     "phpstan/phpstan": "^0.10.7 || ^0.11.0",
-    "phpunit/phpunit": "^7.5",
+    "phpunit/phpunit": "^7.5 || ^8.0",
     "wyrihaximus/cs-fixer-config": "^1.0.1"
   },
   "require-dev": {},