Bump more-itertools from 10.3.0 to 10.4.0 in /requirements

Bumps [more-itertools](https://github.com/more-itertools/more-itertools) from 10.3.0 to 10.4.0.
- [Release notes](https://github.com/more-itertools/more-itertools/releases)
- [Commits](more-itertools/more-itertools@v10.3.0...v10.4.0)

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

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