chore: bump google-genai in /backend in the uv-backend-minor-patch group

Bumps the uv-backend-minor-patch group in /backend with 1 update: [google-genai](https://github.com/googleapis/python-genai).


Updates `google-genai` from 2.16.0 to 2.17.0
- [Release notes](https://github.com/googleapis/python-genai/releases)
- [Changelog](https://github.com/googleapis/python-genai/blob/v2.17.0/CHANGELOG.md)
- [Commits](googleapis/python-genai@v2.16.0...v2.17.0)

---
updated-dependencies:
- dependency-name: google-genai
  dependency-version: 2.17.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: uv-backend-minor-patch
...

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

Author: dependabot[bot]

backend/pyproject.toml

@@ -10,7 +10,7 @@ dependencies = [
     "asyncpg>=0.30.0",
     "bcrypt>=4.3.0",
     "fastapi[standard]>=0.141.1",
-    "google-genai>=2.16.0",
+    "google-genai>=2.17.0",
     "greenlet>=3.5.4",
     "httpx>=0.28.1",
     "itsdangerous>=2.2.0",