Bump botocore from 1.20.3 to 1.20.7
Bump botocore from 1.20.3 to 1.20.7

Bumps [botocore](https://github.com/boto/botocore) from 1.20.3 to 1.20.7.
- [Release notes](https://github.com/boto/botocore/releases)
- [Changelog](https://github.com/boto/botocore/blob/develop/CHANGELOG.rst)
- [Commits](https://github.com/boto/botocore/compare/1.20.3...1.20.7)

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