chore(deps): bump @backstage/catalog-model from 1.7.5 to 1.7.6

Bumps [@backstage/catalog-model](https://github.com/backstage/backstage/tree/HEAD/packages/catalog-model) from 1.7.5 to 1.7.6.
- [Release notes](https://github.com/backstage/backstage/releases)
- [Changelog](https://github.com/backstage/backstage/blob/master/packages/catalog-model/CHANGELOG.md)
- [Commits](https://github.com/backstage/backstage/commits/HEAD/packages/catalog-model)

---
updated-dependencies:
- dependency-name: "@backstage/catalog-model"
  dependency-version: 1.7.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]