chore(deps): bump authlib from 1.4.1 to 1.6.1 in /backend
Bumps [authlib](https://github.com/authlib/authlib) from 1.4.1 to 1.6.1.
- [Release notes](https://github.com/authlib/authlib/releases)
- [Changelog](https://github.com/authlib/authlib/blob/main/docs/changelog.rst)
- [Commits](https://github.com/authlib/authlib/compare/v1.4.1...v1.6.1)
---
updated-dependencies:
- dependency-name: authlib
dependency-version: 1.6.1
dependency-type: direct:production
update-type: version-update:semver-minor
...
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dependabot[bot]