Add GoodJob gem.

This is the first step towards replacing DelayedJob with GoodJob. Compared to
DelayedJob:

* GoodJob supports Rails 7 (DelayedJob is currently a blocker for Rails 7
  because it has a version bound on ActiveRecord <6.2).
* GoodJob has a builtin admin dashboard.
* GoodJob supports threaded job workers.
* GoodJob supports scheduled cronjobs.
* GoodJob supports healthchecks for workers.
* GoodJob uses Postgres notifications instead of polling to pick up new
  jobs. This allows jobs to be picked up faster and scales better with
  large numbers of workers.

https://github.com/bensheldon/good_job

Gemfile.lock

@@ -165,6 +165,8 @@ GEM
     e2mmap (0.1.0)
     ed25519 (1.2.4)
     erubi (1.10.0)
+    et-orbi (1.2.6)
+      tzinfo
     factory_bot (6.2.0)
       activesupport (>= 5.0.0)
     faraday (1.8.0)
@@ -192,10 +194,22 @@ GEM
       ffi (>= 1.0.0)
       rake
     flamegraph (0.9.5)
+    fugit (1.5.2)
+      et-orbi (~> 1.1, >= 1.1.8)
+      raabro (~> 1.4)
     get_process_mem (0.2.7)
       ffi (~> 1.0)
     globalid (1.0.0)
       activesupport (>= 5.0)
+    good_job (2.8.0)
+      activejob (>= 5.2.0)
+      activerecord (>= 5.2.0)
+      concurrent-ruby (>= 1.0.2)
+      fugit (>= 1.1)
+      railties (>= 5.2.0)
+      thor (>= 0.14.1)
+      webrick (>= 1.3)
+      zeitwerk (>= 2.0)
     google-apis-bigquery_v2 (0.22.0)
       google-apis-core (>= 0.4, < 2.a)
     google-apis-core (0.4.1)
@@ -332,6 +346,7 @@ GEM
       puma (>= 2.7)
     pundit (2.1.1)
       activesupport (>= 3.0.0)
+    raabro (1.4.0)
     racc (1.6.0)
     rack (2.2.3)
     rack-contrib (2.3.0)
@@ -533,6 +548,7 @@ DEPENDENCIES
   ffaker
   ffi
   flamegraph
+  good_job
   google-cloud-bigquery
   google-cloud-storage
   hsluv