chore(deps-dev): bump axe-core from 4.7.0 to 4.8.4 (#4253)

Bumps [axe-core](https://github.com/dequelabs/axe-core) from 4.7.0 to 4.8.4.
- [Release notes](https://github.com/dequelabs/axe-core/releases)
- [Changelog](https://github.com/dequelabs/axe-core/blob/v4.8.4/CHANGELOG.md)
- [Commits](dequelabs/axe-core@v4.7.0...v4.8.4)

---
updated-dependencies:
- dependency-name: axe-core
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Josh Black <joshblack@github.com>

Author: dependabot[bot]

package-lock.json

@@ -162,7 +162,7 @@
     "@types/semver": "7.5.3",
     "@types/styled-components": "^5.1.26",
     "ajv": "8.12.0",
-    "axe-core": "4.7.0",
+    "axe-core": "4.8.4",
     "babel-core": "7.0.0-bridge.0",
     "babel-loader": "^9.1.0",
     "babel-plugin-add-react-displayname": "0.0.5",