Bump importlib-metadata from 1.7.0 to 2.0.0
Bump importlib-metadata from 1.7.0 to 2.0.0

Bumps [importlib-metadata](http://importlib-metadata.readthedocs.io/) from 1.7.0 to 2.0.0.

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
mozilla-services/kinto-dist,mozilla-services/kinto-dist