[BD-32] feat: add async feature to Hooks Extension Framework tooling

[mariajgrimaldi]

Description:

This PR allows the Hooks Extension Framework: Pipeline (check out its ADR) defined in PR 110 to run asynchronously using celery tasks.

JIRA:

XXX-XXXX

Dependencies:

BE AWARE This PR depends on Hooks Extension Framework: Tooling

Merge deadline:

None

Installation instructions:

List any non-trivial installation instructions.

Testing instructions:

1. Open page A
2. Do thing B
3. Expect C to happen
4. If D happened instead - check failed.

Reviewers:

• [ ] tag reviewer

Merge checklist:

• [ ] All reviewers approved
• [ ] CI build is green
• [ ] Version bumped
• [ ] Changelog record added
• [ ] Documentation updated (not only docstrings)
• [ ] Commits are squashed

Post merge:

• [ ] Create a tag
• [ ] Check new version is pushed to PyPi after tag-triggered build is finished.
• [ ] Delete working branch (if not needed anymore)

Author concerns:

• [ ] Will there be a problem with adding celery? Adding it will cause other applications to crash?

[openedx-webhooks]

Thanks for the pull request, @mariajgrimaldi! I've created BLENDED-809 to keep track of it in Jira.

When this pull request is ready, tag your edX technical lead.

[regisb]

@mariajgrimaldi Is this ready for review? Please tag me whenever it is.

[mariajgrimaldi]

Hey @regisb, thanks for your reply!

Before reviewing this, please check out the thread on discuss about Hooks Extension Framework. In there, you'll find more context about this PR and PR 110.

[mariajgrimaldi]

The discuss and OEP feedback has led us to remove native support for async.

It is therefore preferable for events to follow the pattern:

Listen on a signal and then create the async task

But that will be the responsibility of whoever writes the action.