jobs: switch from DelayedJob to GoodJob.

Switch the ActiveJob backend from DelayedJob to GoodJob. Differences:

* The job worker is run with `bin/good_job start` instead of `bin/delayed_job`.
* Jobs have an 8 hour timeout instead of a 4 hour timeout.
* Jobs don't automatically retry on failure.
* Finishing jobs are preserved and pruned after 7 days.

Procfile

@@ -8,7 +8,7 @@
 # https://github.com/ddollar/foreman
 
 web: bin/rails server
-worker: bin/rails jobs:work
+worker: bin/good_job start
 clock: bin/rails danbooru:cron
 webpack-dev-server: bin/webpack-dev-server
 # db: docker run --rm -it --name danbooru-postgres --shm-size=8g -p 5432:5432 -e POSTGRES_USER=danbooru - e POSTRES_HOST_AUTH_METHOD=trust -v danbooru-postgres:/var/lib/postgresql/data ghcr.io/danbooru/postgres:14.0