[CI] Alternative build/test without lix/vshaxe-build

[kLabz]

• No longer removing lix/vshaxe-build, just providing alternative
• Outdated libs should make CI fail pretty much all the time without adding another check
• Updating install.hxml locally can be done with haxe-manager's hx lix-to-install install.hxml
• CI is now also running on latest Haxe nightlies to detect issues earlier
• CI is now also running on mac and windows (CI is disabled on windows for now because tests have been broken there for a while)
• Note: had to increase timeout on a few tests because of slow macos runners hitting timeout there

[AlexHaxe]

I don't mind getting rid of vshaxe-build.

dropping lix is a step backwards for me. not only does it break my workflow, we also lose the ability to lock local compilation to a specific Haxe version.

[kLabz]

I don't mind keeping lix and non-lix in sync myself (and adding a CI check) but I do want a non-lix workflow to be available too

[AlexHaxe]

I'm fine with that.

I'll try to remember updating both when adding or upgrading dependencies. if that can be ensured via a CI check that would definitely help keeping them in sync.

[kLabz]

Updated the PR:

• Updated base branch and libs versions
• No longer removing lix/vshaxe-build, just providing alternative
• Outdated libs should make CI fail pretty much all the time without adding another check
• Updating install.hxml locally can be done with haxe-manager's hx lix-to-install install.hxml

Current issues are "unrelated":

• mac job fails because of Fails on haxe 4.3.6 krdlab/setup-haxe#53
• windows tests fail but that's not new; was just not running before