⬆ Bump pydantic from 2.9.2 to 2.11.7 in /backend (#1864)

* ⬆ Bump pydantic from 2.9.2 to 2.11.7 in /backend

Bumps [pydantic](https://github.com/pydantic/pydantic) from 2.9.2 to 2.11.7.
- [Release notes](https://github.com/pydantic/pydantic/releases)
- [Changelog](https://github.com/pydantic/pydantic/blob/main/HISTORY.md)
- [Commits](pydantic/pydantic@v2.9.2...v2.11.7)

---
updated-dependencies:
- dependency-name: pydantic
  dependency-version: 2.11.7
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

* Update

---------

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: User <[email protected]>
Co-authored-by: Alejandra <[email protected]>

Author: dependabot[bot]

backend/app/core/config.py

@@ -11,7 +11,6 @@
     computed_field,
     model_validator,
 )
-from pydantic_core import MultiHostUrl
 from pydantic_settings import BaseSettings, SettingsConfigDict
 from typing_extensions import Self
 
@@ -60,7 +59,7 @@ def all_cors_origins(self) -> list[str]:
     @computed_field  # type: ignore[prop-decorator]
     @property
     def SQLALCHEMY_DATABASE_URI(self) -> PostgresDsn:
-        return MultiHostUrl.build(
+        return PostgresDsn.build(
             scheme="postgresql+psycopg",
             username=self.POSTGRES_USER,
             password=self.POSTGRES_PASSWORD,