chore(deps): bump @bull-board/koa from 4.2.2 to 6.7.4

Bumps [@bull-board/koa](https://github.com/felixmosh/bull-board/tree/HEAD/packages/koa) from 4.2.2 to 6.7.4.
- [Release notes](https://github.com/felixmosh/bull-board/releases)
- [Changelog](https://github.com/felixmosh/bull-board/blob/master/CHANGELOG.md)
- [Commits](https://github.com/felixmosh/bull-board/commits/v6.7.4/packages/koa)

---
updated-dependencies:
- dependency-name: "@bull-board/koa"
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

package.json

@@ -52,7 +52,7 @@
     "@babel/preset-env": "^7.16.0",
     "@babel/preset-react": "^7.16.0",
     "@bull-board/api": "^4.2.2",
-    "@bull-board/koa": "^4.2.2",
+    "@bull-board/koa": "^6.7.4",
     "@dnd-kit/core": "^6.0.5",
     "@dnd-kit/modifiers": "^6.0.0",
     "@dnd-kit/sortable": "^7.0.1",