fix(deps): bump contentful-management from 9.0.0 to 9.1.2

Bumps [contentful-management](https://github.com/contentful/contentful-management.js) from 9.0.0 to 9.1.2.
- [Release notes](https://github.com/contentful/contentful-management.js/releases)
- [Changelog](https://github.com/contentful/contentful-management.js/blob/master/CHANGELOG.md)
- [Commits](contentful/contentful-management.js@v9.0.0...v9.1.2)

---
updated-dependencies:
- dependency-name: contentful-management
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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