packageformatversion property appeneded in middle of xml rather than starting

Hi,

After creating package using BIML the property package format version is appended in middle and expectation is to be like below:

<?xml version="1.0"?>
<DTS:Executable
DTS:refId="Package" xmlns:DTS="www.microsoft.com/SqlServer/Dts"
DTS:ExecutableType="SSIS.Package.3"
DTS:CreatorName=""
DTS:CreatorComputerName="Gxx1"
DTS:CreationDate="4/21/2020 11:15:45 AM"
DTS:PackageType="5"
DTS:VersionMajor="0"
DTS:VersionBuild="129"
DTS:VersionGUID="{6CEF344D-BF9D-4FE3-AF7C-3A166C89B49C}"
DTS:LastModifiedProductVersion="11.0.2100.60"
DTS:LocaleID="2057"
DTS:DelayValidation="True"
DTS:ObjectName="FNZ_Staging_balanceupdates"
DTS:DTSID="{44F90966-621C-46A7-966B-818E0B1EB58D}"
DTS:CreationName="SSIS.Package.3">
<DTS:Property
DTS:Name="PackageFormatVersion">6</DTS:Property>
<DTS:ConnectionManagers>

please help