chore(deps): bump react-router-dom in /superset-frontend

Bumps [react-router-dom](https://github.com/remix-run/react-router/tree/HEAD/packages/react-router-dom) from 5.3.4 to 6.28.0.
- [Release notes](https://github.com/remix-run/react-router/releases)
- [Changelog](https://github.com/remix-run/react-router/blob/main/CHANGELOG.md)
- [Commits](https://github.com/remix-run/react-router/commits/react-router-dom@6.28.0/packages/react-router-dom)

---
updated-dependencies:
- dependency-name: react-router-dom
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

superset-frontend/package.json

@@ -187,7 +187,7 @@
     "react-redux": "^7.2.9",
     "react-resize-detector": "^7.1.2",
     "react-reverse-portal": "^2.1.1",
-    "react-router-dom": "^5.3.4",
+    "react-router-dom": "^6.28.0",
     "react-search-input": "^0.11.3",
     "react-sortable-hoc": "^2.0.0",
     "react-split": "^2.0.9",