chore(deps): bump more-itertools from 8.2.0 to 8.3.0

Bumps [more-itertools](https://github.com/more-itertools/more-itertools) from 8.2.0 to 8.3.0.
- [Release notes](https://github.com/more-itertools/more-itertools/releases)
- [Commits](more-itertools/more-itertools@v8.2.0...v8.3.0)

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

requirements.txt

@@ -5,7 +5,7 @@ coverage==5.1
 coveralls==2.0.0
 flake8==3.8.1
 mccabe==0.6.1
-more-itertools==8.2.0
+more-itertools==8.3.0
 pluggy==0.13.1
 py==1.8.1
 pycodestyle==2.6.0