Added optional value to fail-fast option

[Verest]

#6152

First time working with this code base. This appears to work, although ran into a few issues.

1. Not super happy about having to cache the suite object in order to potentially stop it later. Is there some form of a container present for a better way to access this?
2. Had to be a bit hacky around the failure tests. Ended out just making a separate test class/group for multiple failures.
3. I could not get 5 of the RemoteWith... tests to pass locally. However, I don't think this is related to my changes.

Aside that, let me know if any requested changes or bugs found. Intent was to keep this working with boolean values as well for fail-fast, in terms of the existing configuration files.

Not sure if this falls into the "merge into 4.1" or "merge into master" category, defaulting to 4.1 for the time being. Let me know if it should be changed to master.

[DavertMik]

Looks good to me! Absolutely needed feature and proper implementation!

[Verest]

@DavertMik Well... it somehow is failing with windows-only php8.1. Is this a related failure to my changes?

I am using linux and cannot replicate this error currently. At the very least, this test ( SuiteManagerTest: Few tests) does not fail on linux php8.1.

[DavertMik]

PHP 8,1 and Windows.. what a combo. It is related because the only test is failing is the one you added.
Well, you can skip this test on PHP 8.1 and Windows for now. Let's re-enable if we get more information on this cause.

[Verest]

In retrospect, I am not sure if php8.1 was actually ran via ubuntu based on the details, although still passes for me locally. Technically I suppose php8.1 isn't even released yet 😆 .

Unless I am missing something, I did not modify the test that is failing - it appears tests\unit\Codeception\SuiteManagerTest.php:testFewTests is the culprit. Did you want me to add logic to skip this test if windows/php8.1 is detected?

[DavertMik]

Did you want me to add logic to skip this test if windows/php8.1 is detected?

@Verest Yes, please do

[Verest]

@DavertMik all green now~