[GTIN] Hide GTIN in product editor

[puntope]

Changes proposed in this Pull Request:

Closes part of #2684

This PR fixes a bug in which GTIN field was not hidden or disabled in Product Block Editor. Additionally fixes some e2e tests in product editor and classic editor

Screenshots:

Detailed test instructions:

1. Setup Product Block editor
2. Set the WP Option gla_install_versionas < 2.8.8
3. Go to Google for WooCommerce tab in the product editor
4. GTIN should be readonly
5. Set the WP Option gla_install_versionas >= 2.8.8
6. Go to Google for WooCommerce tab in the product editor
7. GTIN should not be rendered in the UI
8. Install YOAST for WooComemerce
9. Repeat steps 2-7

Additional details:

Changelog entry

Fix - Hide or disable GTIN in Product Block editor

[codecov]

Codecov Report

Attention: Patch coverage is 71.42857% with 2 lines in your changes missing coverage. Please review.

Project coverage is 64.7%. Comparing base (5d03086) to head (4aece62).
Report is 7 commits behind head on develop.

Files with missing lines	Patch %	Lines
src/Admin/ProductBlocksService.php	50.0%	1 Missing ⚠️
...ernal/DependencyManagement/CoreServiceProvider.php	0.0%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##             develop   #2690   +/-   ##
=========================================
  Coverage       64.7%   64.7%           
- Complexity      4665    4667    +2     
=========================================
  Files            799     799           
  Lines          24640   24645    +5     
  Branches        1242    1242           
=========================================
+ Hits           15938   15944    +6     
+ Misses          8529    8528    -1     
  Partials         173     173           

Flag	Coverage Δ
js-unit-tests	62.4% <ø> (ø)
php-unit-tests	65.3% <71.4%> (+<0.1%)	⬆️

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

Files with missing lines	Coverage Δ
src/Admin/Input/Input.php	100.0% <100.0%> (+2.5%)	⬆️
src/Admin/ProductBlocksService.php	96.1% <50.0%> (-0.7%)	⬇️
...ernal/DependencyManagement/CoreServiceProvider.php	0.0% <0.0%> (ø)

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[mikkamp]

Thanks for the changes. I tested all combinations of versions both with Yoast enabled and disabled, and I'm getting the expected results.

Both the unit tests and E2E tests pass locally now as well.

I'll go ahead and approved the PR. If there aren't any drastic changes with setting gla_install_version during E2E testing and changing the expected fields, then I'm ok with getting the PR merged without an additional review. We'll need to have it ready early on Monday to not block any of the other branches being released.