fix(dependabot): Resolve Security Alerts

[lukeroantreeONS]

📌 Resolves several security alerts surrounding transitive dependencies

✨ Summary

Dependabot flagged several alerts. Some did not impact us and have been closed.
This PR changes the minimum google-genai package version we specify, which follows through to allow tornado and pyasn1 dependencies to upgrade to the required patched versions.

📜 Changes Introduced

• chore(pyproject.toml): update google-genai version

✅ Checklist

Please confirm you've completed these checks before requesting a review.

• Code passes linting with Ruff
• Security checks pass using Bandit
• API and Unit tests are written and pass using pytest
• Terraform files (if applicable) follow best practices and have been validated (terraform fmt & terraform validate)
• DocStrings follow Google-style and are added as per Pylint recommendations
• Documentation has been updated if needed

🔍 How to Test

Run uv lock; uv sync
Run uv build - confirm builds correctly.
Run through the AI notebook to confirm no issues with GCP interactions as a result of the update

Extra points; check the updated uv.lock file to confirm tornado and pyasn1 are now suitable versions (see Dependabot alerts)
Handy command for checking this;

uv tree | grep --color=always -E 'tornado|pyasn1|$'

[frayle-ons]

LGTM and checked lock file