Bump pyramid-storage from 0.3.0 to 0.3.1
Bump pyramid-storage from 0.3.0 to 0.3.1

Bumps [pyramid-storage](https://github.com/danjac/pyramid_storage) from 0.3.0 to 0.3.1.
- [Release notes](https://github.com/danjac/pyramid_storage/releases)
- [Changelog](https://github.com/danjac/pyramid_storage/blob/master/CHANGELOG.txt)
- [Commits](https://github.com/danjac/pyramid_storage/compare/0.3.0...0.3.1)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
Kinto/kinto-attachment