build(deps): bump libtest-mimic from 0.7.2 to 0.7.3 (#6714)

Bumps [libtest-mimic](https://github.com/LukasKalbertodt/libtest-mimic) from 0.7.2 to 0.7.3.
- [Release notes](https://github.com/LukasKalbertodt/libtest-mimic/releases)
- [Changelog](https://github.com/LukasKalbertodt/libtest-mimic/blob/master/CHANGELOG.md)
- [Commits](LukasKalbertodt/libtest-mimic@v0.7.2...v0.7.3)

---
updated-dependencies:
- dependency-name: libtest-mimic
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]