Bump attrs from 25.3.0 to 25.4.0

Bumps [attrs](https://github.com/sponsors/hynek) from 25.3.0 to 25.4.0.
- [Commits](https://github.com/sponsors/hynek/commits)

---
updated-dependencies:
- dependency-name: attrs
  dependency-version: 25.4.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]