Bump engines/ahoy_email from `9e4fa55` to `4af77b2`
Bump engines/ahoy_email from `9e4fa55` to `4af77b2`

Bumps [engines/ahoy_email](https://github.com/ankane/ahoy_email) from `9e4fa55` to `4af77b2`.
- [Release notes](https://github.com/ankane/ahoy_email/releases)
- [Commits](https://github.com/ankane/ahoy_email/compare/9e4fa5541fdc754f573e68a579908007a2104e3b...4af77b2136b5b66babcdf1280f396ee3a71f5632)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
eliotsykes/real-world-rails