chore(deps): bump rc-menu from 9.14.1 to 9.15.1 (#735)

Bumps [rc-menu](https://github.com/react-component/menu) from 9.14.1 to 9.15.1.
- [Release notes](https://github.com/react-component/menu/releases)
- [Changelog](https://github.com/react-component/menu/blob/master/CHANGELOG.md)
- [Commits](react-component/menu@v9.14.1...v9.15.1)

---
updated-dependencies:
- dependency-name: rc-menu
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -40,7 +40,7 @@
     "@babel/runtime": "^7.11.2",
     "classnames": "2.x",
     "rc-dropdown": "~4.2.0",
-    "rc-menu": "~9.14.0",
+    "rc-menu": "~9.15.1",
     "rc-motion": "^2.6.2",
     "rc-resize-observer": "^1.0.0",
     "rc-util": "^5.34.1"