Bump @redocly/cli from 2.9.0 to 2.12.6

Bumps [@redocly/cli](https://github.com/Redocly/redocly-cli) from 2.9.0 to 2.12.6.
- [Release notes](https://github.com/Redocly/redocly-cli/releases)
- [Commits](https://github.com/Redocly/redocly-cli/compare/@redocly/cli@2.9.0...@redocly/cli@2.12.6)

---
updated-dependencies:
- dependency-name: "@redocly/cli"
  dependency-version: 2.12.6
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]