chore(deps): bump google-genai in /apps/orchestrator

Bumps [google-genai](https://github.com/googleapis/python-genai) from 1.68.0 to 1.69.0.
- [Release notes](https://github.com/googleapis/python-genai/releases)
- [Changelog](https://github.com/googleapis/python-genai/blob/main/CHANGELOG.md)
- [Commits](googleapis/python-genai@v1.68.0...v1.69.0)

---
updated-dependencies:
- dependency-name: google-genai
  dependency-version: 1.69.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

apps/orchestrator/requirements.txt

@@ -20,7 +20,7 @@ opentelemetry-exporter-otlp-proto-grpc==1.40.0
 opentelemetry-exporter-otlp-proto-http==1.40.0
 playwright==1.58.0
 # Primary LLM provider (Gemini-first).
-google-genai==1.68.0
+google-genai==1.69.0
 # Optional provider accelerator (enabled via CORTEXPILOT_PROVIDER_USE_LITELLM=1).
 # Keep this path optional at runtime; do not block baseline bootstrap/clean-room
 # recovery on a provider accelerator that is activated only behind an env flag.