feat(webhooks): filter request priority

[miguelpeixe]

All Submissions:

• Have you followed the Newspack Contributing guideline?
• Does your code follow the WordPress' coding standards and VIP Go coding standards?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

Changes proposed in this Pull Request:

1208510338230630-as-1208865846387764/f

Adds a filter to allow a custom priority argument when running a webhook request via ActionScheduler.

How to test the changes in this Pull Request:

1. Setup a webhook endpoint for reader_registered and reader_logged_in (use https://webhook.site/)
2. Paste this code anywhere in the plugin:

add_filter(
  'newspack_webhooks_request_priority',
  function( $priority, $action_name ) {
    if ( 'reader_registered' === $action_name ) {
      $priority = 1;
    }
    return $priority;
  },
  10,
  2
);

3. In a fresh session, go through the RAS flow for registering a new reader so it triggers both events
4. Confirm an AS action is created with priority 1 and the other with priority 10:

SELECT * from wp_actionscheduler_actions WHERE hook = 'newspack_webhooks_as_process_request'  ORDER BY scheduled_date_gmt DESC LIMIT 10;

Other information:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your changes, as applicable?
• Have you successfully ran tests with your changes locally?

[github-actions]

Hey @miguelpeixe, good job getting this PR merged! 🎉

Now, the needs-changelog label has been added to it.

Please check if this PR needs to be included in the "Upcoming Changes" and "Release Notes" doc. If it doesn't, simply remove the label.

If it does, please add an entry to our shared document, with screenshots and testing instructions if applicable, then remove the label.

Thank you! ❤️

[matticbot]

🎉 This PR is included in version 5.10.0-alpha.1 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀

[matticbot]

🎉 This PR is included in version 5.10.0 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀