fix: Slow unit test - getLatestWeakSubjectivityCheckpointEpoch #2564

[3xtr4t3rr3str14l]

fixes #2564

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[dapplion]

@3xtr4t3rr3str14l I don't see how this fixes the issue, you are still generating +200_000 validators to test some math.

Can you split the function to test to something like

const parameters = getParametersFromState(state)
const result = doMathWithParameters(parameters)

and test only doMathWithParameters so its not necessary to create a huge state to test math