Bump bootstrap-vue from 2.22.0 to 2.23.1 in /webui/frontend (#535)

Bumps [bootstrap-vue](https://github.com/bootstrap-vue/bootstrap-vue) from 2.22.0 to 2.23.1.
- [Release notes](https://github.com/bootstrap-vue/bootstrap-vue/releases)
- [Changelog](https://github.com/bootstrap-vue/bootstrap-vue/blob/dev/CHANGELOG.md)
- [Commits](bootstrap-vue/bootstrap-vue@v2.22.0...v2.23.1)

---
updated-dependencies:
- dependency-name: bootstrap-vue
  dependency-type: direct:production
  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: Moshe Beladev <moshebe123@gmail.com>