Merge pull request #357 from line/renovate/npm-nanoid-vulnerability

Update dependency nanoid to 3.1.31 [SECURITY]

Author: tokuhirom

package-lock.json

@@ -50,7 +50,7 @@
     "express": "^4.17.3",
     "finalhandler": "^1.2.0",
     "husky": "^4.3.0",
-    "mocha": "^8.1.3",
+    "mocha": "^9.0.0",
     "nock": "^13.2.4",
     "nyc": "^15.1.0",
     "prettier": "^2.6.2",