The only tests that relied on this, were the ones for package
management and party management but we can fairly easily remove that
dependency by only checking the diff in packages and thereby folding
the listKnown* and uploadParty/uploadDar file into a combined test.

I’ve also bumped one timeout that I’ve seen fail on CI and managed to
get to fail locally under load.

I am unable to get the tests to fail now locally so I’ve marked them
as non-flaky on everything but Windows (we’ve seen weird segfaults
there).

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• Include appropriate tests
• Set a descriptive title and thorough description
• Add a reference to the issue this PR will solve, if appropriate
• Add a line to the release notes, if appropriate
• Normal production system change, include purpose of change in description

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