Skip after callbacks if terminated in active job

Not sure this configuration option does anything, though, since it's
been removed in Rails 7.0 because it was not halting the callbacks.

But, if it does nothing, it's the same as disabling it, which is what we
were doing until now, so in the end using the Rails 6.1 default value
does no harm.

config/initializers/new_framework_defaults_6_1.rb

@@ -17,7 +17,7 @@ Rails.application.config.active_job.retry_jitter = 0.15
 
 # Stop executing `after_enqueue`/`after_perform` callbacks if
 # `before_enqueue`/`before_perform` respectively halts with `throw :abort`.
-# Rails.application.config.active_job.skip_after_callbacks_if_terminated = true
+Rails.application.config.active_job.skip_after_callbacks_if_terminated = true
 
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