[API PULL] Disable create and update notifications for variations

[puntope]

Changes proposed in this Pull Request:

• Disable Create notification if the product is a variation
• Disable Update notification if the product is a variation
• Schedules delete notifications when the parent product is (DONT_SYNC_AND_SHOW, unpublished etc...)
• Tweak tests

Slack ref: p1720458122308169/1719561677.366209-slack-C02BB3F30TG

Detailed test instructions:

1. Create a variable product
2. Set the variables for the product and prices
3. Publish the product
4. See the Notification Create Job is scheduled for the parent. Run it
5. Update the product description
6. See the Notification Update Job is scheduled for the parent. Run it
7. Update a variation price
8. See the Notification Update Job is scheduled for the parent. Run it
9. Delete a variation
10. See the Notification Update Job is scheduled for the parent. Run it
11. See in the logs the delete notification has been sent for the variable
12. Set the parent product as "DONT SYNC AND SHOW"
13. See the Notification Delete Job is scheduled for the parent and variations

Additional details:

Changelog entry

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 64.8%. Comparing base (e7be1ca) to head (0159630).
Report is 47 commits behind head on feature/google-api-project.

Additional details and impacted files

@@                     Coverage Diff                      @@
##             feature/google-api-project   #2464   +/-   ##
============================================================
  Coverage                          64.8%   64.8%           
- Complexity                         4561    4564    +3     
============================================================
  Files                               473     473           
  Lines                             17799   17801    +2     
============================================================
+ Hits                              11533   11535    +2     
  Misses                             6266    6266           

Flag	Coverage Δ
php-unit-tests	64.8% <100.0%> (+<0.1%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
src/Product/ProductHelper.php	92.2% <100.0%> (+0.1%)	⬆️
src/Product/SyncerHooks.php	90.0% <100.0%> (ø)

... and 6 files with indirect coverage changes

[jorgemd24]

@puntope, thanks for the adjustments, LGTM. I tested the following scenarios:

• Update variation -> Creates a notification for the parent.
• Create variation -> Creates a notification for the parent.
• Delete variation -> Creates an update notification for the parent + sends a request with a delete notification for the variation, sending the offer_id. (It is not scheduled the notification)
• Delete variable product -> sends the delete notification for parent and variants without scheduling the job.