[Rock] Add playwright

[Soare-Robert-Daniel]

Closes #1091

Summary

• I added Playwright as a runner for tests;
• Migrate the old cypress to the playwright;
  • chart creation with admin pages
  • data import
  • Gutenberg block insertion in Post
• Introduced new tests;
  • admin filter check
  • Gutenberg block inspector check
  • chart insertion in Post with classic editor via Media
• Added docs on how to run the tests;
• Small improvement to the docker-composer file for the environment testing;

Note

All tests are independent. Not need to run them in a successive order

Comparision

Previously, the E2E accumulated 13 minutes (there was a matrix formation with 3 runs: 8 min, 3 min, 2min ). Now, the test runs at 3 minutes (without the need for a matrix). Thus, a reduction of 10 minutes (~79% improvement).

Also, great performance for the tools, working with playwright editor is much better than cypress, way less lag.

Check before Pull Request is ready:

• I have written a test and included it in this PR
• I have run all tests and they pass
• The code passes when running the PHP CodeSniffer
• Code meets WordPress Coding Standards for PHP, HTML, CSS and JS
• Security and Sanitization requirements have been followed
• I have assigned a reviewer or two to review this PR (if you're not sure who to assign, we can do this step for you)

[pirate-bot]

Plugin build for acfd39a is ready 🛎️!

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[preda-bogdan]

I left a few notes that you can maybe clear up for me, other than that the code looks good. I can approve it once you answer them.

Thank you!

[GrigoreMihai]

LGTM with the latest changes.

[pirate-bot]

🎉 This PR is included in version 3.10.9 🎉

The release is available on GitHub release

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