Bump pydantic-settings from 2.14.2 to 2.15.0

Bumps [pydantic-settings](https://github.com/pydantic/pydantic-settings) from 2.14.2 to 2.15.0.
- [Release notes](https://github.com/pydantic/pydantic-settings/releases)
- [Commits](pydantic/pydantic-settings@v2.14.2...v2.15.0)

---
updated-dependencies:
- dependency-name: pydantic-settings
  dependency-version: 2.15.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements.txt

@@ -2,7 +2,7 @@ couchbase==4.6.2
 fastapi==0.139.2
 httpx==0.28.1
 pydantic==2.13.4
-pydantic-settings==2.14.2
+pydantic-settings==2.15.0
 pytest==9.1.1
 python-dotenv==1.2.2
 uvicorn==0.51.0