Bump concurrently from 7.1.0 to 7.2.1 in /src-ui

Bump concurrently from 7.1.0 to 7.2.1 in /src-ui

Bumps [concurrently](https://github.com/open-cli-tools/concurrently) from 7.1.0 to 7.2.1.
- [Release notes](https://github.com/open-cli-tools/concurrently/releases)
- [Commits](https://github.com/open-cli-tools/concurrently/compare/v7.1.0...v7.2.1)

---
updated-dependencies:
- dependency-name: concurrently
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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