Bump importlib-metadata from 2.1.0 to 2.1.1
Bump importlib-metadata from 2.1.0 to 2.1.1

Bumps [importlib-metadata](https://github.com/python/importlib_metadata) from 2.1.0 to 2.1.1.
- [Release notes](https://github.com/python/importlib_metadata/releases)
- [Changelog](https://github.com/python/importlib_metadata/blob/master/CHANGES.rst)
- [Commits](https://github.com/python/importlib_metadata/compare/v2.1.0...v2.1.1)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
amolenaar/gaphas