Add tests around product block editor tabs

[joshuatf]

All Submissions:

• Have you followed the WooCommerce Contributing guideline?
• Does your code follow the WordPress' 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:

Adds tests around tabs and the tab block. Note that the context is mocked since I don't see a clear way to set context attributes from child components.

Closes #37096 .

How to test the changes in this Pull Request:

• Have you followed the Writing high-quality testing instructions guide?

1. Check that all tests pass.

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 created a changelog file for each project being changed, ie pnpm --filter=<project> changelog add?
• Have you included testing instructions?

FOR PR REVIEWER ONLY:

• I have reviewed that everything is sanitized/escaped appropriately for any SQL or XSS injection possibilities. I made sure Linting is not ignored or disabled.

[codecov]

Codecov Report

Merging #37225 (38702a5) into trunk (0cf5677) will decrease coverage by 0.0%.
The diff coverage is 23.7%.

Additional details and impacted files

@@            Coverage Diff             @@
##             trunk   #37225     +/-   ##
==========================================
- Coverage     46.7%    46.7%   -0.0%     
- Complexity   17191    17192      +1     
==========================================
  Files          429      429             
  Lines        64845    64874     +29     
==========================================
+ Hits         30275    30284      +9     
- Misses       34570    34590     +20     

Impacted Files	Coverage Δ
plugins/woocommerce/includes/class-wc-ajax.php	4.3% <0.0%> (-<0.1%)	⬇️
...ugins/woocommerce/includes/class-wc-post-types.php	2.7% <0.0%> (-0.1%)	⬇️
...ocommerce/includes/abstracts/abstract-wc-order.php	86.6% <50.0%> (-0.1%)	⬇️
...gins/woocommerce/includes/wc-product-functions.php	44.7% <100.0%> (+1.0%)	⬆️

... and 1 file with indirect coverage changes

[github-actions]

Test Results Summary

Commit SHA: 38702a5

Test 🧪	Passed ✅	Failed 🚨	Broken 🚧	Skipped ⏭️	Unknown ❔	Total 📊	Duration ⏱️
API Tests	259	0	0	2	0	261	0m 50s
E2E Tests	191	0	0	10	0	201	13m 47s

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To view the full API test report, click here.
To view the full E2E test report, click here.
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[joelclimbsthings]

Tests pass, looks good!