build(deps-dev): bump contentful-management from 11.31.4 to 11.31.6

Bumps [contentful-management](https://github.com/contentful/contentful-management.js) from 11.31.4 to 11.31.6.
- [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@v11.31.4...v11.31.6)

---
updated-dependencies:
- dependency-name: contentful-management
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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