Bump merge-deep from 3.0.2 to 3.0.3 in /ui (#648)

Bumps [merge-deep](https://github.com/jonschlinkert/merge-deep) from 3.0.2 to 3.0.3.
- [Release notes](https://github.com/jonschlinkert/merge-deep/releases)
- [Commits](jonschlinkert/merge-deep@3.0.2...3.0.3)

---
updated-dependencies:
- dependency-name: merge-deep
  dependency-type: indirect
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]