test(systemtests): fix iavl nil #76667

Job	Run time
split-test-files	14s
test-integration	6m 39s
test-sim-nondeterminism	32s
test-clientv2	27s
test-core	21s
test-coretesting	25s
test-depinject	34s
test-errors	28s
test-indexer-postgres	23s
test-math	32s
test-schema	29s
test-schema-testing	30s
test-simapp-v2	5m 29s
test-collections	21s
test-collections-protocodec	21s
test-confix	29s
test-hubl	27s
test-cosmovisor	24s
test-orm	22s
test-log	31s
test-store	1m 42s
test-store-v2	31m 35s
test-x-accounts	21s
test-x-accounts-base	21s
test-x-accounts-lockup	24s
test-x-accounts-multisig	20s
test-x-tx	21s
test-x-circuit	21s
test-x-distribution	21s
test-x-evidence	21s
test-x-feegrant	32s
test-x-nft	26s
test-x-protocolpool	21s
test-x-upgrade	26s
test-x-params	23s
test-tools-benchmark	27s
test-x-authz	20s
test-x-bank	25s
test-x-consensus	21s
test-x-epochs	21s
test-x-gov	25s
test-x-group	25s
test-x-mint	21s
test-x-slashing	23s
test-x-staking	23s
tests (00)	8m 20s
tests (01)	3m 45s
tests (02)	4m 12s
tests (03)	4m 19s
repo-analysis	37s
	1h 23m 17s

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