Bump diffy from 3.2.0 to 3.2.1
Bump diffy from 3.2.0 to 3.2.1

Bumps [diffy](https://github.com/samg/diffy) from 3.2.0 to 3.2.1.
- [Release notes](https://github.com/samg/diffy/releases)
- [Changelog](https://github.com/samg/diffy/blob/master/CHANGELOG)
- [Commits](https://github.com/samg/diffy/commits)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
rafaelfranca/simple_form-bootstrap,rafaelfranca/simple_form-bootstrap,rafaelfranca/simple_form-bootstrap