Bump pydantic-settings from 2.1.0 to 2.2.1

Bumps [pydantic-settings](https://github.com/pydantic/pydantic-settings) from 2.1.0 to 2.2.1.
- [Release notes](https://github.com/pydantic/pydantic-settings/releases)
- [Commits](pydantic/pydantic-settings@v2.1.0...v2.2.1)

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

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

requirements.txt

@@ -3,7 +3,7 @@ plotly==5.11.0
 pymongo==3.12.0
 pymatgen==2023.12.18
 pydantic==2.4.2
-pydantic-settings==2.1.0
+pydantic-settings==2.2.1
 emmet-core==0.70.6
 monty==2023.11.3
 pytest-cov