Bugfix: ActionMailers with keyword args fail in Ruby 3.2.1

[marcrohloff]

This fixes an issue where mailer methods defined with keyword args like def test(user, notes:) fail with Ruby 3.2.1 and Rails 7.0.4

[mattpolito]

@marcrohloff Thanks for the PR, however I think we'd be better off to cut a new release that removes support for Ruby < 3. 2.7 is at end of life.

Also, do you have a scenario where this is failing or can you add a test case?

[marcrohloff]

@mattpolito The existing Mailer hello_bird test fails under Ruby 3.2.1 without the patch

I agree that it would be good to remove support for earler Ruby (and Rails) versions