chore(deps): bump @commitlint/config-conventional

Bumps the commitlint-dependencies group with 1 update: [@commitlint/config-conventional](https://github.com/conventional-changelog/commitlint/tree/HEAD/@commitlint/config-conventional).


Updates `@commitlint/config-conventional` from 18.6.3 to 20.3.1
- [Release notes](https://github.com/conventional-changelog/commitlint/releases)
- [Changelog](https://github.com/conventional-changelog/commitlint/blob/master/@commitlint/config-conventional/CHANGELOG.md)
- [Commits](https://github.com/conventional-changelog/commitlint/commits/v20.3.1/@commitlint/config-conventional)

---
updated-dependencies:
- dependency-name: "@commitlint/config-conventional"
  dependency-version: 20.3.1
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: commitlint-dependencies
...

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Author: dependabot[bot]