Bump external standards

Author: jaapio

composer.json

@@ -23,7 +23,7 @@
   "require": {
     "php": "^7.2",
     "dealerdirect/phpcodesniffer-composer-installer": "^0.5.0",
-    "doctrine/coding-standard": "^5.0"
+    "doctrine/coding-standard": "^7.0"
   },
   "config": {
     "sort-packages": true