chore(deps): bump pydantic from 2.11.9 to 2.12.5

Bumps [pydantic](https://github.com/pydantic/pydantic) from 2.11.9 to 2.12.5.
- [Release notes](https://github.com/pydantic/pydantic/releases)
- [Changelog](https://github.com/pydantic/pydantic/blob/main/HISTORY.md)
- [Commits](pydantic/pydantic@v2.11.9...v2.12.5)

---
updated-dependencies:
- dependency-name: pydantic
  dependency-version: 2.12.5
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements.txt

@@ -38,7 +38,7 @@ openai==2.6.1
 # Lambda layer: common
 # ------------
 python-dotenv==1.2.1
-pydantic==2.11.9
+pydantic==2.12.5
 pydantic-settings==2.11.0
 python-hcl2==7.3.1