Update dependency prettier to v2.2.1 (#254)

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

Author: renovate[bot]

package.json

@@ -24,7 +24,7 @@
     "husky": "4.3.0",
     "lint-staged": "10.1.3",
     "mocha": "8.1.3",
-    "prettier": "2.1.1"
+    "prettier": "2.2.1"
   },
   "babel": {
     "presets": [

yarn.lock

@@ -2910,10 +2910,10 @@ posix-character-classes@^0.1.0:
   resolved "https://registry.yarnpkg.com/posix-character-classes/-/posix-character-classes-0.1.1.tgz#01eac0fe3b5af71a2a6c02feabb8c1fef7e00eab"
   integrity sha1-AerA/jta9xoqbAL+q7jB/vfgDqs=
 
-prettier@2.1.1:
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.1.1.tgz#d9485dd5e499daa6cb547023b87a6cf51bee37d6"
-  integrity sha512-9bY+5ZWCfqj3ghYBLxApy2zf6m+NJo5GzmLTpr9FsApsfjriNnS2dahWReHMi7qNPhhHl9SYHJs2cHZLgexNIw==
+prettier@2.2.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.2.1.tgz#795a1a78dd52f073da0cd42b21f9c91381923ff5"
+  integrity sha512-PqyhM2yCjg/oKkFPtTGUojv7gnZAoG80ttl45O6x2Ug/rMJw4wcc9k6aaf2hibP7BGVCCM33gZoGjyvt9mm16Q==
 
 private@^0.1.8:
   version "0.1.8"