chore(deps): update dependency eslint-config-prettier to v8 (#3770)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

package.json

@@ -118,7 +118,7 @@
     "docsearch.js": "^2.6.3",
     "enquire-js": "^0.2.1",
     "eslint": "^6.8.0",
-    "eslint-config-prettier": "^6.10.1",
+    "eslint-config-prettier": "^8.0.0",
     "eslint-plugin-html": "^6.0.0",
     "eslint-plugin-markdown": "^2.0.0-alpha.0",
     "eslint-plugin-prettier": "^3.1.4",