Bump authlib from 1.3.2 to 1.4.0

Bumps [authlib](https://github.com/lepture/authlib) from 1.3.2 to 1.4.0.
- [Release notes](https://github.com/lepture/authlib/releases)
- [Changelog](https://github.com/lepture/authlib/blob/master/docs/changelog.rst)
- [Commits](lepture/authlib@v1.3.2...v1.4.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -6,7 +6,7 @@ python-dateutil==2.9.0.post0
 python-dotenv==1.0.1
 Werkzeug==3.1.3
 Flask-Minify==0.48
-Authlib==1.3.2
+Authlib==1.4.0
 MarkupSafe==3.0.2
 pymsteams==0.2.3
 flask-compress==1.17