build: bump @headlessui/vue from 1.7.19 to 1.7.21 in /console/frontend

Bumps [@headlessui/vue](https://github.com/tailwindlabs/headlessui/tree/HEAD/packages/@headlessui-vue) from 1.7.19 to 1.7.21.
- [Release notes](https://github.com/tailwindlabs/headlessui/releases)
- [Changelog](https://github.com/tailwindlabs/headlessui/blob/@headlessui/vue@v1.7.21/packages/@headlessui-vue/CHANGELOG.md)
- [Commits](https://github.com/tailwindlabs/headlessui/commits/@headlessui/vue@v1.7.21/packages/@headlessui-vue)

---
updated-dependencies:
- dependency-name: "@headlessui/vue"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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