Add support for RazorLangVersion 8

[jjonescz]

In dotnet/razor#8286 we introduce RazorLangVersion 8 which calls new method RenderTreeBuilder.AddComponentParameter. Looks like the SDK needs to be updated, for example here:

sdk/src/RazorSdk/Targets/Sdk.Razor.CurrentVersion.targets

Lines 46 to 91 in 94ad56a

	<Choose>
	<When Condition=" '$(TargetFrameworkIdentifier)' == '.NETCoreApp' AND $([MSBuild]::VersionGreaterThanOrEquals('$(TargetFrameworkVersion)', '7.0')) ">
	<PropertyGroup>
	<_TargetingNETCoreApp30OrLater>true</_TargetingNETCoreApp30OrLater>
	<_TargetingNET50OrLater>true</_TargetingNET50OrLater>
	<_TargetingNET60OrLater>true</_TargetingNET60OrLater>
	<_TargetingNET70OrLater>true</_TargetingNET70OrLater>
	<UseRazorSourceGenerator Condition="'$(Language)' == 'C#' AND '$(UseRazorSourceGenerator)' == '' ">true</UseRazorSourceGenerator>
	<RazorLangVersion Condition="'$(RazorLangVersion)' == '' ">7.0</RazorLangVersion>
	</PropertyGroup>
	</When>
	<When Condition=" '$(TargetFrameworkIdentifier)' == '.NETCoreApp' AND $([MSBuild]::VersionGreaterThanOrEquals('$(TargetFrameworkVersion)', '6.0')) ">
	<PropertyGroup>
	<_TargetingNETCoreApp30OrLater>true</_TargetingNETCoreApp30OrLater>
	<_TargetingNET50OrLater>true</_TargetingNET50OrLater>
	<_TargetingNET60OrLater>true</_TargetingNET60OrLater>
	<UseRazorSourceGenerator Condition="'$(Language)' == 'C#' AND '$(UseRazorSourceGenerator)' == '' ">true</UseRazorSourceGenerator>
	<RazorLangVersion Condition="'$(RazorLangVersion)' == '' ">6.0</RazorLangVersion>
	</PropertyGroup>
	</When>
	<When Condition=" '$(TargetFrameworkIdentifier)' == '.NETCoreApp' AND $([MSBuild]::VersionGreaterThanOrEquals('$(TargetFrameworkVersion)', '5.0')) ">
	<PropertyGroup>
	<_TargetingNETCoreApp30OrLater>true</_TargetingNETCoreApp30OrLater>
	<_TargetingNET50OrLater>true</_TargetingNET50OrLater>
	<UseRazorSourceGenerator>false</UseRazorSourceGenerator>
	<RazorLangVersion Condition="'$(RazorLangVersion)' == '' ">5.0</RazorLangVersion>
	</PropertyGroup>
	</When>
	<When Condition=" '$(TargetFrameworkIdentifier)' == '.NETCoreApp' AND $([MSBuild]::VersionGreaterThanOrEquals('$(TargetFrameworkVersion)', '3.0')) ">
	<PropertyGroup>
	<_TargetingNETCoreApp30OrLater>true</_TargetingNETCoreApp30OrLater>
	<UseRazorSourceGenerator>false</UseRazorSourceGenerator>
	<RazorLangVersion Condition="'$(RazorLangVersion)' == '' ">3.0</RazorLangVersion>
	</PropertyGroup>
	</When>
	<When Condition="'$(TargetFrameworkIdentifier)' == '.NETStandard' AND $([MSBuild]::VersionGreaterThanOrEquals('$(TargetFrameworkVersion)', '2.1')) ">
	<PropertyGroup>
	<_TargetingNETStandard21OrLater>true</_TargetingNETStandard21OrLater>
	</PropertyGroup>
	</When>
	<When Condition="'$(TargetFrameworkIdentifier)' == '.NETStandard' AND $([MSBuild]::VersionGreaterThanOrEquals('$(TargetFrameworkVersion)', '2.0')) ">
	<PropertyGroup>
	<_TargetingNETStandard20OrLater>true</_TargetingNETStandard20OrLater>
	</PropertyGroup>
	</When>
	</Choose>

[surayya-MS]

@mkArtakMSFT, could you please follow up?

[mkArtakMSFT]

@jjonescz shouldn't this be closed already?

[jjonescz]

Yes, thanks. Resolved by #33756.