Windows integration tests sometimes failing

[qstokkink]

On both Windows, Python 3.9 and Windows, Python 3.10 the integration tests sometimes get stuck forever:

python run_unit_tests.py -a -k tribler/test_integration -p 2

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My first thought is that the instances on the two processes might be finding each other because they have the same download:

tribler/src/tribler/test_integration/test_anon_download.py

Lines 178 to 179 in 2c8eae2

	with open(config.get_dest_dir() / "ubuntu-15.04-desktop-amd64.iso", "wb") as f: # noqa: ASYNC101
	f.write(bytes([0] * 524288))

tribler/src/tribler/test_integration/test_hidden_services.py

Lines 209 to 210 in 2c8eae2

	with open(config.get_dest_dir() / "ubuntu-15.04-desktop-amd64.iso", "wb") as f: # noqa: ASYNC101
	f.write(bytes([0] * 524288))

These instances should never connect to each other but we can give them different file contents + names just to be sure.

Of course, there may still be something entirely different going on.