build(deps): bump contentful-management from 11.19.1 to 11.20.1 (#1702)

Bumps [contentful-management](https://github.com/contentful/contentful-management.js) from 11.19.1 to 11.20.1.
- [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@v11.19.1...v11.20.1)

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

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