chore(deps): update dependency prettier to v2

Author: renovate-bot

package-lock.json

@@ -39,7 +39,7 @@
     "@types/jest": "25.1.3",
     "@types/node": "13.7.4",
     "jest": "25.1.0",
-    "prettier": "1.19.1",
+    "prettier": "2.3.1",
     "pretty-quick": "2.0.1",
     "serverless": "2.0.0",
     "serverless-aws-documentation": "1.1.0",