Release GoodJob 4.0

[bensheldon]

Upgrade blocking application needs

• Application developers need to ensure that all unfinished jobs are "discrete". This means ensuring being up to date on database migrations, and then running through all jobs.
  • TODO: have a GoodJob.v4_ready? check

Deprecations

• Remove support for JRuby 9.2. Done in Remove support for Ruby 2.5 and JRuby 9.2; reactivate appraisal tests for Rails HEAD #756
• Remove support for C Ruby < 3.0 and JRuby < 9.4. This gets us entirely on Ruby 3.0 compatible syntax 😰

After migration

• Publish a discussion post: GoodJob v4 #1396
• Publish a blog post: https://island94.org/2024/07/introducing-goodjob-v4
• Post on Ruby.Social: https://ruby.social/@bensheldon/112743421143107997
• Post on Reddit (r/rails): https://www.reddit.com/r/rails/comments/1dxncuq/introducing_goodjob_v4/
• Ruby Weekly (picked up via Reddit)
• Short Ruby (Picked up via Reddit / Mastodon)
• Ruby Land (via island94.org)
• Ruby Flow https://rubyflow.com/p/l5uf9h-goodjob-v4-
• GitHub Release Radar: [RR Request]: GoodJob v4 github/release-radar#223

Blocked features

• Using labels for concurrency rules
• Can add paused jobs: features to pause batch execution #1323

[sandstrom]

I'll re-raise a few suggestions I think I've mentioned before (feel free to ignore of course!):

• Remove localization (Internationalize/I18n the Dashboard Engine #408 (comment)).
• Remove Chromedriver as a dependency (used for a few tests, live polling for example, but maybe these features aren't that important, and can be simplified along with removing the chromedriver).
• If possible, remove the net-imap gem.