Bump @types/react-addons-update from 0.14.14 to 0.14.21

Bumps [@types/react-addons-update](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/react-addons-update) from 0.14.14 to 0.14.21.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/react-addons-update)

---
updated-dependencies:
- dependency-name: "@types/react-addons-update"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -80,7 +80,7 @@
     "@types/react-dom": "17.0.17",
     "@types/react-addons-shallow-compare": "0.14.17",
     "@types/react-addons-test-utils": "0.14.15",
-    "@types/react-addons-update": "0.14.14",
+    "@types/react-addons-update": "0.14.21",
     "@types/react-mentions": "^4.1.3",
     "@types/sinon": "2.3.4",
     "@types/webpack-env": "~1.15.2",