chore: Bump tabbable from 5.1.3 to 6.2.0

Bumps [tabbable](https://github.com/focus-trap/tabbable) from 5.1.3 to 6.2.0.
- [Release notes](https://github.com/focus-trap/tabbable/releases)
- [Changelog](https://github.com/focus-trap/tabbable/blob/master/CHANGELOG.md)
- [Commits](focus-trap/tabbable@v5.1.3...v6.2.0)

---
updated-dependencies:
- dependency-name: tabbable
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

package.json

@@ -66,7 +66,7 @@
     "react-popper": "^2.3.0",
     "react-required-if": "^1.0.3",
     "shortid": "^2.2.16",
-    "tabbable": "^5.1.3"
+    "tabbable": "^6.2.0"
   },
   "devDependencies": {
     "@babel/cli": "^7.12.8",