Bump pydantic-settings from 2.4.0 to 2.5.2

Bumps [pydantic-settings](https://github.com/pydantic/pydantic-settings) from 2.4.0 to 2.5.2.
- [Release notes](https://github.com/pydantic/pydantic-settings/releases)
- [Commits](pydantic/pydantic-settings@v2.4.0...v2.5.2)

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

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

pyproject.toml

@@ -138,7 +138,7 @@ testing = [
     "fastagency[submodules]",
     "fastagency[test-core]",
     "fastagency[server]", # Uvicorn is needed for testing
-    "pydantic-settings==2.4.0",
+    "pydantic-settings==2.5.2",
     "PyYAML==6.0.2",
     "watchfiles==0.24.0",
     "email-validator==2.2.0",