deps: update python-multipart requirement from >=0.0.18 to >=0.0.27 (#29)

Updates the requirements on [python-multipart](https://github.com/Kludex/python-multipart) to permit the latest version.
- [Changelog](https://github.com/Kludex/python-multipart/blob/main/CHANGELOG.md)
- [Commits](Kludex/python-multipart@0.0.18...0.0.27)

---
updated-dependencies:
- dependency-name: python-multipart
  dependency-version: 0.0.27
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements.txt

@@ -7,7 +7,7 @@ pyyaml>=6.0
 aiosqlite>=0.20
 httpx>=0.28
 apscheduler>=3.10
-python-multipart>=0.0.18
+python-multipart>=0.0.27
 cryptography>=44.0
 bcrypt>=4.0
 itsdangerous>=2.2