Fix Flaky Test

[pretty-parrot]

What is the purpose of this PR

• This PR patches lithoxyl/tests/test_stats.py::test_acc_random and prevents it from failing when it is run by itself
• Test is flaky (non-deterministic) and depends on lithoxyl/tests/test_stats.py::test_momentacc_norm to set up a state to pass, but the test fails when it is run by itself otherwise

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Expected Result

• Test lithoxyl/tests/test_stats.py::test_acc_random should pass when run both by itself and after lithoxyl/tests/test_stats.py::test_momentacc_norm

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Actual Result

• Test lithoxyl/tests/test_stats.py::test_acc_random fails when it is run by itself
• Specifically, we get the following:

_________________________________________________________________________________________________ test_acc_random _________________________________________________________________________________________________

    def test_acc_random():
        data = test_sets['random.random 0.0-1.0']

        qa = ReservoirAccumulator(data)
        capqa = ReservoirAccumulator(data, cap=True)
        p2qa = P2Accumulator(data)
        for acc in (qa, capqa, p2qa):
            for qp, v in acc.get_quantiles():
                if qp > 0:
>                   assert 0.95 < (v / qp) < 1.05
E                   assert (0.010605121375992893 / 0.01) < 1.05

lithoxyl/tests/test_stats.py:118: AssertionError

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Reproduce the test failure

• Run python3 -m pytest lithoxyl/tests/test_stats.py::test_acc_random

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Why the Test Fails

• The test fails because the test is dependent on some state that is not set when it is run by itself.

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Fix

• The changes in this pull request sets the state and makes the test pass when it is run by itself.

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