fix: timeiotams bug

[troykessler]

This PR fixes a bug which can be reproduced with:

ksync state-sync --opt-out -b ./celestia-appd-v2.2.0 -d -l -r -t 2400000
./celestia-appd-v2.2.0 start --p2p.seeds="ade4d8bc8cbe014af6ebdf3cb7b1e9ad36f412c0@seeds.polkachu.com:11656"

which throws the following panic:

panic: Failed to process committed block (2400001:2EBC42F0C98379203D57C118D13D2CCD9F9ADD4849A176ECCDE19808073C2D53): commit failed for application: error updating consensus params: block.TimeIotaMs must be greater than 0. Got 0

goroutine 147 [running]:
github.com/tendermint/tendermint/blockchain/v0.(*BlockchainReactor).poolRoutine(0x14000583c00, 0x0)
	/root/go/pkg/mod/github.com/celestiaorg/celestia-core@v1.42.0-tm-v0.34.35/blockchain/v0/reactor.go:418 +0xe44
created by github.com/tendermint/tendermint/blockchain/v0.(*BlockchainReactor).OnStart in goroutine 67
	/root/go/pkg/mod/github.com/celestiaorg/celestia-core@v1.42.0-tm-v0.34.35/blockchain/v0/reactor.go:112 +0x78

With this PR this error does not occur anymore and instead syncs the blocks normally