chore(deps): bump python-multipart in /apps/backend

Bumps [python-multipart](https://github.com/Kludex/python-multipart) from 0.0.26 to 0.0.27.
- [Release notes](https://github.com/Kludex/python-multipart/releases)
- [Changelog](https://github.com/Kludex/python-multipart/blob/main/CHANGELOG.md)
- [Commits](Kludex/python-multipart@0.0.26...0.0.27)

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

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

Author: dependabot[bot]

apps/backend/pyproject.toml

@@ -6,7 +6,7 @@ requires-python = ">=3.13"
 dependencies = [
     "fastapi==0.128.4",
     "uvicorn==0.40.0",
-    "python-multipart==0.0.26",
+    "python-multipart==0.0.27",
     "pydantic==2.12.5",
     "pydantic-settings==2.12.0",
     "tinydb==4.8.2",

apps/backend/requirements.txt

@@ -1,6 +1,6 @@
 fastapi==0.128.4
 uvicorn==0.40.0
-python-multipart==0.0.26
+python-multipart==0.0.27
 pydantic==2.12.5
 pydantic-settings==2.12.0
 tinydb==4.8.2