chore(deps): pin dependency yargs to 17.0.1 (#80)

Author: renovate[bot]

packages/api-mock/package.json

@@ -29,7 +29,7 @@
     "express": "4.17.1",
     "nanoid": "3.1.23",
     "openapi-backend": "4.1.0",
-    "yargs": "^17.0.1"
+    "yargs": "17.0.1"
   },
   "devDependencies": {
     "axios": "0.21.1",