fix: use UTC time for packet timeout error (#4476) (#4496)

(cherry picked from commit 674d832)

Co-authored-by: Tom <54514587+GAtom22@users.noreply.github.com>

modules/core/04-channel/keeper/packet.go

@@ -92,7 +92,7 @@ func (k Keeper) SendPacket(
 	if packet.GetTimeoutTimestamp() != 0 && latestTimestamp >= packet.GetTimeoutTimestamp() {
 		return 0, sdkerrors.Wrapf(
 			types.ErrPacketTimeout,
-			"receiving chain block timestamp >= packet timeout timestamp (%s >= %s)", time.Unix(0, int64(latestTimestamp)), time.Unix(0, int64(packet.GetTimeoutTimestamp())),
+			"receiving chain block timestamp >= packet timeout timestamp (%s >= %s)", time.Unix(0, int64(latestTimestamp)).UTC(), time.Unix(0, int64(packet.GetTimeoutTimestamp())).UTC(),
 		)
 	}
 
@@ -189,7 +189,7 @@ func (k Keeper) RecvPacket(
 	if packet.GetTimeoutTimestamp() != 0 && uint64(ctx.BlockTime().UnixNano()) >= packet.GetTimeoutTimestamp() {
 		return sdkerrors.Wrapf(
 			types.ErrPacketTimeout,
-			"block timestamp >= packet timeout timestamp (%s >= %s)", ctx.BlockTime(), time.Unix(0, int64(packet.GetTimeoutTimestamp())),
+			"block timestamp >= packet timeout timestamp (%s >= %s)", ctx.BlockTime(), time.Unix(0, int64(packet.GetTimeoutTimestamp())).UTC(),
 		)
 	}