Update dependency prettier to v2.2.1

Author: renovate-bot

package.json

@@ -123,7 +123,7 @@
     "mini-css-extract-plugin": "0.12.0",
     "node-sass": "4.14.1",
     "npm-check-updates": "7.1.1",
-    "prettier": "2.2.0",
+    "prettier": "2.2.1",
     "pretty-quick": "2.0.2",
     "sass-loader": "8.0.2",
     "style-loader": "1.2.1",