Bump ex_machina from 2.6.0 to 2.7.0 (#1187)
Bump ex_machina from 2.6.0 to 2.7.0 (#1187)

Bumps [ex_machina](https://github.com/thoughtbot/ex_machina) from 2.6.0 to 2.7.0.
- [Release notes](https://github.com/thoughtbot/ex_machina/releases)
- [Changelog](https://github.com/thoughtbot/ex_machina/blob/master/CHANGELOG.md)
- [Commits](https://github.com/thoughtbot/ex_machina/compare/v2.6.0...v2.7.0)

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

Co-authored-by: dependabot-preview[bot] <6a4c1c4838f800d1998274cd5234e1f65c55e90c@users.noreply.github.com>
signdict/website,signdict/website,signdict/website