Bump attrs from 23.2.0 to 24.2.0 (#1225)

Bumps [attrs](https://github.com/sponsors/hynek) from 23.2.0 to 24.2.0.
- [Commits](https://github.com/sponsors/hynek/commits)

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

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

Author: dependabot[bot]

demos/moderator_bot/requirements-dev.txt

@@ -3,7 +3,7 @@ aiohttp==3.8.6
 aioslacker==0.0.11
 async-timeout==4.0.3
 atomicwrites==1.4.1
-attrs==23.2.0
+attrs==24.2.0
 certifi==2024.7.4
 chardet==5.2.0
 idna==3.7