build(deps): bump @atlaskit/button from 18.3.1 to 18.4.0 (#176)

Bumps [@atlaskit/button](https://bitbucket.org/atlassian/atlassian-frontend-mirror) from 18.3.1 to 18.4.0.
- [Commits](https://bitbucket.org/atlassian/atlassian-frontend-mirror/commits)

---
updated-dependencies:
- dependency-name: "@atlaskit/button"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

src/frontend/package.json

@@ -10,7 +10,7 @@
     "start": "vite --open"
   },
   "dependencies": {
-    "@atlaskit/button": "18.3.1",
+    "@atlaskit/button": "18.4.0",
     "@atlaskit/css-reset": "6.9.1",
     "@atlaskit/form": "10.4.7",
     "@atlaskit/spinner": "16.2.0",