[ci] Integration tests: support for Linux/Mac #1989
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What
And ARM Linux and Mac support for integration tests
Why
#1941
Known limitations
Set threads to 1, this doesn't slow build too much.
Current main: ~10 minutes
Multiplatform multithread (using
ubuntu-latest-16-cores
): ~7 minutes -> making a lot of requests in multithreaded environment messes up the fees and leads to failures. This doesn't happen with smaller instance because it doesn't send as much requests (however, it still leads to flaky tests for the same reason -- fees)Multiplatform singlethread: ~11 minutes