build(deps): bump bits-ui from 0.6.3 to 0.21.4

Bumps [bits-ui](https://github.com/huntabyte/bits-ui) from 0.6.3 to 0.21.4.
- [Release notes](https://github.com/huntabyte/bits-ui/releases)
- [Commits](https://github.com/huntabyte/bits-ui/compare/v0.6.3...bits-ui@0.21.4)

---
updated-dependencies:
- dependency-name: bits-ui
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

package.json

@@ -38,7 +38,7 @@
   "dependencies": {
     "@auth/core": "^0.17.0",
     "@auth/sveltekit": "0.3.7",
-    "bits-ui": "^0.6.3",
+    "bits-ui": "^0.21.4",
     "clsx": "^2.0.0",
     "jwt-decode": "^3.1.2",
     "lottie-web": "^5.12.2",