Bump python-multipart from 0.0.17 to 0.0.18 in /backend in the pip gr…

…oup (#781)

Bumps the pip group in /backend with 1 update: [python-multipart](https://github.com/Kludex/python-multipart).


Updates `python-multipart` from 0.0.17 to 0.0.18
- [Release notes](https://github.com/Kludex/python-multipart/releases)
- [Changelog](https://github.com/Kludex/python-multipart/blob/master/CHANGELOG.md)
- [Commits](Kludex/python-multipart@0.0.17...0.0.18)

---
updated-dependencies:
- dependency-name: python-multipart
  dependency-type: direct:production
  dependency-group: pip
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

backend/requirements.txt

@@ -17,7 +17,7 @@ markdown==3.6
 MarkupSafe==2.1.2
 nh3==0.2.18
 python-dotenv==1.0.1
-python-multipart==0.0.17
+python-multipart==0.0.18
 PyJWT==2.6.0
 pydantic[email]==2.9.2
 sentry-sdk==2.10.0