Fixes #37356 - Allow turning automatic content count updates off

[sjha4]

What are the changes introduced in this pull request?

Add a setting "automatic_content_count_updates" to control automatic invocation of Update content count task on proxies upon successful syncs.

Considerations taken when implementing this change?

The Update content counts action is triggered asynchronously upon a successful sync on a proxy.
This task can be a long running task for large proxies on a slow connection and this can cause slowness in syncs in the queue.

What are the testing steps for this pull request?

1. Turn the setting "Calculate content counts on smart proxies automatically" on and off and check if Update content counts is run automatically or not depending on the value of the setting.

[sjha4]

Rebased for pipeline..

[vsedmik]

ACK, packit/PRT at the companion PR passed: SatelliteQE/robottelo#15371 (comment)

[sbernhard]

This task can be a long running task for large proxies on a slow connection and this can cause slowness in syncs in the queue.

I wonder, why a async task can slow down other tasks. Instead of adding a new setting and make this feature configuruable, wouldn't it be better to think about how this feature can be improved?

E.g.:
https://github.com/Katello/katello/blame/5c17dce4c6710e8d105794880e1a8baa4f5a726b/app/models/katello/content_view_version.rb#L349 count vs size (see https://medium.com/unagi/ruby-on-rails-length-vs-size-vs-count-with-examples-a32e17274c79)

[sjha4]

This seems to happen for users with slow master -> proxy connections and the API call to pulp takes a long time. This is a band-aid for such users to turn it off and run this manually when they need to.

We have some improvements to this in the pipeline which include making the task granular and only run on contents that have actually changed but that will be follow up PR.

[sbernhard]

LGTM

[wbclark]

Sorry for the delay here and thanks for your patience.

Code LGTM other than the alignment nit.

I thought about asking for a test, but looking at test/actions/katello/capsule_content_test.rb and then app/lib/actions/katello/capsule_content/update_content_counts.rb there doesn't seem enough need