feat: implement new celery task for pearson engine integration

[andrey-canon]

Description

Adds a new celery task that allows to connect previous integration with the pearson engine service.

Testing instructions

1. Go to current course enrollment implementation and test all the custom actions

Before

After

Additional information

Include anything else that will help reviewers and consumers understand the change.

• Does this change depend on other changes elsewhere?
• Any special concerns or limitations? For example: deprecations, migrations, security, or accessibility.
• Link to other information about the change, such as Jira issues, GitHub issues, or Discourse discussions.

Checklist for Merge

• Tested in a remote environment
• Updated documentation
• Rebased master/main
• Squashed commits