Bump more-itertools from 10.7.0 to 10.8.0 in /demos (#1609)

Bumps [more-itertools](https://github.com/more-itertools/more-itertools) from 10.7.0 to 10.8.0.
- [Release notes](https://github.com/more-itertools/more-itertools/releases)
- [Commits](more-itertools/more-itertools@v10.7.0...v10.8.0)

---
updated-dependencies:
- dependency-name: more-itertools
  dependency-version: 10.8.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

@@ -8,7 +8,7 @@ chardet==5.2.0
 idna==3.10
 importlib-metadata==0.23 ; python_version < '3.8'
 joblib==1.5.2
-more-itertools==10.7.0
+more-itertools==10.8.0
 multidict==6.6.4
 numpy==2.3.2
 pluggy==1.6.0