chore: bump python-multipart in /services/mcp-server

Bumps [python-multipart](https://github.com/Kludex/python-multipart) from 0.0.22 to 0.0.26.
- [Release notes](https://github.com/Kludex/python-multipart/releases)
- [Changelog](https://github.com/Kludex/python-multipart/blob/master/CHANGELOG.md)
- [Commits](Kludex/python-multipart@0.0.22...0.0.26)

---
updated-dependencies:
- dependency-name: python-multipart
  dependency-version: 0.0.26
  dependency-type: direct:production
...

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

Author: dependabot[bot]

services/mcp-server/poetry.lock

@@ -23,7 +23,7 @@ python-dateutil = "^2.9.0.post0"
 jinja2 = "^3.1.6"
 starlette = ">=0.49.1"
 authlib = "^1.6.6"
-python-multipart = "^0.0.22"
+python-multipart = "^0.0.26"
 
 [tool.poetry.group.test.dependencies]
 pytest = "^8.2.1"