feat: add rand funcs to math (#15043)

testutil/network/network.go

@@ -18,8 +18,8 @@ import (
 	"cosmossdk.io/depinject"
 	"cosmossdk.io/log"
 	sdkmath "cosmossdk.io/math"
+	"cosmossdk.io/math/unsafe"
 	cmtlog "github.com/cometbft/cometbft/libs/log"
-	cmtrand "github.com/cometbft/cometbft/libs/rand"
 	"github.com/cometbft/cometbft/node"
 	cmtclient "github.com/cometbft/cometbft/rpc/client"
 	dbm "github.com/cosmos/cosmos-db"
@@ -143,7 +143,7 @@ func DefaultConfig(factory TestFixtureFactory) Config {
 		AppConstructor:    fixture.AppConstructor,
 		GenesisState:      fixture.GenesisState,
 		TimeoutCommit:     2 * time.Second,
-		ChainID:           "chain-" + cmtrand.Str(6),
+		ChainID:           "chain-" + unsafe.Str(6),
 		NumValidators:     4,
 		BondDenom:         sdk.DefaultBondDenom,
 		MinGasPrices:      fmt.Sprintf("0.000006%s", sdk.DefaultBondDenom),