Update dependency prettier to v2.1.2

Author: renovate-bot

package-lock.json

@@ -65,7 +65,7 @@
     "husky": "4.2.5",
     "jest": "24.9.0",
     "lint-staged": "10.1.3",
-    "prettier": "2.0.4",
+    "prettier": "2.1.2",
     "rimraf": "3.0.2",
     "ts-jest": "24.3.0",
     "ts-node": "8.6.2",