chore: bump authlib from 1.6.5 to 1.6.6 in /services/mcp-server

Bumps [authlib](https://github.com/authlib/authlib) from 1.6.5 to 1.6.6.
- [Release notes](https://github.com/authlib/authlib/releases)
- [Changelog](https://github.com/authlib/authlib/blob/main/docs/changelog.rst)
- [Commits](authlib/authlib@v1.6.5...v1.6.6)

---
updated-dependencies:
- dependency-name: authlib
  dependency-version: 1.6.6
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

services/mcp-server/poetry.lock

@@ -22,7 +22,7 @@ dependency-injector = "^4.46.0"
 python-dateutil = "^2.9.0.post0"
 jinja2 = "^3.1.6"
 starlette = ">=0.49.1"
-authlib = "^1.6.4"
+authlib = "^1.6.6"
 
 [tool.poetry.group.dev.dependencies]
 debugpy = "^1.8.1"