Bump net-imap from 0.2.3 to 0.3.1
Bump net-imap from 0.2.3 to 0.3.1

Bumps [net-imap](https://github.com/ruby/net-imap) from 0.2.3 to 0.3.1.
- [Release notes](https://github.com/ruby/net-imap/releases)
- [Commits](https://github.com/ruby/net-imap/compare/v0.2.3...v0.3.1)

---
updated-dependencies:
- dependency-name: net-imap
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
Retrospring/retrospring,Retrospring/retrospring,Retrospring/retrospring,Retrospring/retrospring,Retrospring/retrospring