Bump @mia-platform/custom-plugin-lib from 6.0.0 to 6.0.3

Bumps [@mia-platform/custom-plugin-lib](https://github.com/mia-platform/custom-plugin-lib) from 6.0.0 to 6.0.3.
- [Changelog](https://github.com/mia-platform/custom-plugin-lib/blob/master/CHANGELOG.md)
- [Commits](mia-platform/custom-plugin-lib@v6.0.0...v6.0.3)

---
updated-dependencies:
- dependency-name: "@mia-platform/custom-plugin-lib"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>