Tests

mitigate unexpected state #845

Job	Run time
unit	4m 38s
e2e (TestMultipleChainHorcrux)	5m 9s
e2e (TestChainPureHorcrux)	5m 3s
e2e (TestDownedSigners2of3)	7m 23s
e2e (TestDownedSigners3of5)	8m 20s
e2e (TestLeaderElection2of3)	5m 43s
e2e (Test2Of3SignerThreeSentries)	4m 57s
e2e (Test2Of3SignerThreeSentriesUniqueConnection)	5m 2s
e2e (TestUpgradeValidatorToHorcrux)	5m 2s
e2e (TestSingleSignerTwoSentries)	4m 56s
e2e (TestHorcruxProxyGRPC)	5m 10s
	1h 1m 23s

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