Upgrade Rails to 7.1

[olleolleolle]

This PR upgrades the code base to use Rails 7.1. It is a part of upgrading Rails to latest stable release. Our method is the recommended "one minor at a time".

The PR is now draft, and will be turned into a regular PR when ready for it.

cc @mroderick.

Errors to fix

• Zeitwerk name expectation - See a2995a2 a297efc
  Zeitwerk::NameError: expected file /home/runner/work/planner/planner/lib/services/event_calendar.rb to define constant Services::EventCalendar, but didn't # ./vendor/bundle/ruby/3.4.0/gems/zeitwerk-2.7.3/lib/zeitwerk/loader/callbacks.rb:31:in 'Zeitwerk::Loader::Callbacks#on_file_autoloaded'
• Unpermitted parameter: :format. Context: { controller: ChapterController, action: show, request: #<ActionDispatch::Request:0x000000012c45bc30>, params: {"controller" => "chapter", "action" => "show", "id" => "apple-touch-icon", "format" => "png"} } Chapter Load (11.6ms) SELECT "chapters".* FROM "chapters" WHERE "chapters"."active" = $1 AND "chapters"."slug" = $2 LIMIT $3 [["active", true], ["slug", "apple-touch-icon"], ["LIMIT", 1]] ↳ app/controllers/chapter_controller.rb:3:in 'ChapterController#show' Completed 404 Not Found in 593ms (ActiveRecord: 49.0ms | Allocations: 118818)
• spec/lib/verifier_spec.rb:9 make the Verifier test pass - there is a setting that upgrades the verifier serialization, assess impact of upgrading it
  1) Verifier generates access_token for an id Failure/Error: expect(Verifier.new(id: 1).access_token).to be_eql('BAhpBg==--30d45b871c77098a0ba79cf27dd532650ca75531') expected `"MQ==--a3487195ba15b69d4aa07b7da0234463b82c96b3".eql?("BAhpBg==--30d45b871c77098a0ba79cf27dd532650ca75531")` to be truthy, got false # ./spec/lib/verifier_spec.rb:9:in 'block (2 levels) in <top (required)>' # ./spec/spec_helper.rb:114:in 'block (2 levels) in <top (required)>'

Cleanup

• all commits that go together, put together
• follow https://edgeguides.rubyonrails.org/upgrading_ruby_on_rails.html#upgrading-from-rails-7-0-to-rails-7-1
• enable Rails 7.1 configuration using the config/initializers/new_framework_defaults.rb file and then
• enable 7.1 defaults

Findings

• Ticket became Services::Ticket and seems unfinished and unused. We could trim that away, I guess.