message: fix: homepage url
diff: "bugs": {
  "url": "https://github.com/kintone/js-sdk/issues"
  },
  - "homepage": "https://github.com/kintone/js-sdk/packages/rest-api-client#readme",
  + "homepage": "https://github.com/kintone/js-sdk/tree/master/packages/rest-api-client#readme",
  "devDependencies": {
  "@kintone/customize-uploader": "^2.0.6",
  "@types/core-js": "^2.5.2",
  