Bump email_spec from 2.2.2 to 2.3.0

Bumps [email_spec](https://github.com/email-spec/email-spec) from 2.2.2 to 2.3.0.
- [Changelog](https://github.com/email-spec/email-spec/blob/main/CHANGELOG.md)
- [Commits](email-spec/email-spec@v2.2.2...v2.3.0)

---
updated-dependencies:
- dependency-name: email_spec
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Gemfile.lock

@@ -176,9 +176,9 @@ GEM
  em-websocket (0.5.2)
  eventmachine (>= 0.12.9)
  http_parser.rb (~> 0.6.0)
- email_spec (2.2.2)
+ email_spec (2.3.0)
  htmlentities (~> 4.3.3)
- launchy (~> 2.1)
+ launchy (>= 2.1, < 4.0)
  mail (~> 2.7)
  email_validator (2.2.4)
  activemodel
@@ -369,7 +369,7 @@ GEM
  pry (>= 0.13.0)
  psych (5.1.2)
  stringio
- public_suffix (6.0.0)
+ public_suffix (6.0.1)
  puma (6.4.2)
  nio4r (~> 2.0)
  racc (1.8.1)