chore(deps): bump react-reverse-portal in /superset-frontend

Bumps [react-reverse-portal](https://github.com/httptoolkit/react-reverse-portal) from 2.1.1 to 2.1.2.
- [Commits](httptoolkit/react-reverse-portal@v2.1.1...v2.1.2)

---
updated-dependencies:
- dependency-name: react-reverse-portal
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

superset-frontend/package.json

@@ -186,7 +186,7 @@
     "react-loadable": "^5.5.0",
     "react-redux": "^7.2.9",
     "react-resize-detector": "^7.1.2",
-    "react-reverse-portal": "^2.1.1",
+    "react-reverse-portal": "^2.1.2",
     "react-router-dom": "^5.3.4",
     "react-search-input": "^0.11.3",
     "react-sortable-hoc": "^2.0.0",