Bump regenerator-runtime from 0.13.7 to 0.13.9 (#16543)

Bumps [regenerator-runtime](https://github.com/facebook/regenerator) from 0.13.7 to 0.13.9.
- [Release notes](https://github.com/facebook/regenerator/releases)
- [Commits](https://github.com/facebook/regenerator/compare/regenerator-runtime@0.13.7...regenerator-runtime@0.13.9)

---
updated-dependencies:
- dependency-name: regenerator-runtime
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

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

package.json

@@ -146,7 +146,7 @@
     "redux": "^4.1.0",
     "redux-immutable": "^4.0.0",
     "redux-thunk": "^2.2.0",
-    "regenerator-runtime": "^0.13.7",
+    "regenerator-runtime": "^0.13.9",
     "rellax": "^1.12.1",
     "requestidlecallback": "^0.3.0",
     "reselect": "^4.0.0",