chore(deps): update dependency @types/prettier to v2.7.1

Author: renovate[bot]

mock-server/package-lock.json

@@ -41,7 +41,7 @@
     "@types/json-schema": "7.0.11",
     "@types/morgan": "1.9.3",
     "@types/node": "11.15.53",
-    "@types/prettier": "2.6.0",
+    "@types/prettier": "2.7.1",
     "@types/swagger-parser": "4.0.3",
     "@types/wait-on": "5.3.1",
     "@types/which": "2.0.1",