build(deps): update pydantic requirement from ==2.8.* to ==2.9.*

Updates the requirements on [pydantic](https://github.com/pydantic/pydantic) to permit the latest version.
- [Release notes](https://github.com/pydantic/pydantic/releases)
- [Changelog](https://github.com/pydantic/pydantic/blob/main/HISTORY.md)
- [Commits](pydantic/pydantic@v2.8.0b1...v2.9.0)

---
updated-dependencies:
- dependency-name: pydantic
  dependency-type: direct:production
...

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

pyproject.toml

@@ -15,7 +15,7 @@ dependencies = [
     "loguru==0.7.*",
     "lxml==5.3.*",
     "redis==5.0.*",
-    "pydantic==2.8.*",
+    "pydantic==2.9.*",
     "pydantic-settings==2.4.*",
 ]