Merge pull request #452 from line/renovate/prettier-3.x

chore(deps): update dependency prettier to v3

Author: renovate[bot]

package-lock.json

@@ -53,7 +53,7 @@
     "mocha": "10.2.0",
     "nock": "13.3.1",
     "nyc": "15.1.0",
-    "prettier": "2.8.8",
+    "prettier": "3.0.0",
     "ts-node": "10.9.1",
     "typescript": "3.9.10",
     "vuepress": "1.9.9"