build(deps): bump pydantic-settings in /canary-deployer

Bumps [pydantic-settings](https://github.com/pydantic/pydantic-settings) from 2.6.1 to 2.7.0.
- [Release notes](https://github.com/pydantic/pydantic-settings/releases)
- [Commits](pydantic/pydantic-settings@v2.6.1...v2.7.0)

---
updated-dependencies:
- dependency-name: pydantic-settings
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

canary-deployer/requirements.txt

@@ -1,3 +1,3 @@
 trio==0.27.0
 pydantic==2.10.3
-pydantic-settings==2.6.1
+pydantic-settings==2.7.0