Update dependency prettier to v2

Author: renovate-bot

functions/tokenservice/functions/package.json

@@ -28,7 +28,7 @@
     "eslint-plugin-prettier": "^3.1.0",
     "eslint-plugin-promise": "^4.0.1",
     "mocha": "^7.0.0",
-    "prettier": "1.19.1",
+    "prettier": "2.0.0",
     "supertest": "^4.0.0"
   },
   "engines": {

package.json

@@ -24,7 +24,7 @@
     "eslint-plugin-node": "^11.0.0",
     "eslint-plugin-prettier": "^3.1.0",
     "eslint-plugin-promise": "^4.1.1",
-    "prettier": "^1.18.2",
+    "prettier": "^2.0.0",
     "requestretry": "^4.0.0"
   }
 }