build(deps-dev): bump pydantic-extra-types from 2.7.0 to 2.8.0

Bumps [pydantic-extra-types](https://github.com/pydantic/pydantic-extra-types) from 2.7.0 to 2.8.0.
- [Release notes](https://github.com/pydantic/pydantic-extra-types/releases)
- [Changelog](https://github.com/pydantic/pydantic-extra-types/blob/main/HISTORY.md)
- [Commits](pydantic/pydantic-extra-types@v2.7.0...v2.8.0)

---
updated-dependencies:
- dependency-name: pydantic-extra-types
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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