Add Full Integration Tests workflow

[vpodorozh]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/mage-os/github-actions/blob/main/CONTRIBUTING.md#commit
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
• Other... Please describe:

What is the current behavior?

Fixes: N/A

What is the new behavior?

This PR contains new workflow that can be triggered manually and execute dynamically build test suites for next folders:

• dev/tests/integration/testsuite
• app/code
• memory test - \Magento\MemoryUsageTest

All those tests are going to be executed in a matrix of service configs & versions from supported-services.json file (see this PR: mage-os/mageos-magento2#57 ).

Does this PR introduce a breaking change?

• Yes
• No

Other information

[Vinai]

Very nice and understandable, thanks!