Update build-cs

Author: renovate[bot]

build-cs/composer.json

@@ -1,8 +1,8 @@
 {
 "require-dev": {
 "consistence-community/coding-standard": "^3.10",
-"dealerdirect/phpcodesniffer-composer-installer": "^0.7.0",
-"slevomat/coding-standard": "^7.0"
+"dealerdirect/phpcodesniffer-composer-installer": "^1.0.0",
+"slevomat/coding-standard": "^8.0"
 },
 "config": {
 "allow-plugins": {