lnrpc: add wallet output type for Taproot

lnrpc/marshall_utils.go

@@ -167,6 +167,8 @@ func MarshallOutputType(o txscript.ScriptClass) OutputScriptType {
 		return OutputScriptType_SCRIPT_TYPE_NON_STANDARD
 	case txscript.WitnessUnknownTy:
 		return OutputScriptType_SCRIPT_TYPE_WITNESS_UNKNOWN
+	case txscript.WitnessV1TaprootTy:
+		return OutputScriptType_SCRIPT_TYPE_WITNESS_V1_TAPROOT
 	default:
 		return OutputScriptType_SCRIPT_TYPE_PUBKEY_HASH
 	}