chore: attempt to workaround dotnet/aspnetcore#64041

Context: dotnet/aspnetcore#63970
Context: dotnet/aspnetcore#64041
Context: dotnet/runtime#120790
Context: dotnet/sdk#51269
Context: dotnet/aspnetcore#64041 (comment)

.NET 10 RC2 broke WebAssembly, causing apps to crash:

	 [MONO] * Assertion at /__w/1/s/src/runtime/src/mono/mono/metadata/assembly.c:2718, condition `<disabled>' not met
	Error
	    at Mc (dotnet.runtime.fn94ls2wwa.js:3:172298)
	    at dotnet.native.ggch313emy.wasm:0xac62
	    at dotnet.native.ggch313emy.wasm:0x43c51
	    at dotnet.native.ggch313emy.wasm:0x42301
	    at dotnet.native.ggch313emy.wasm:0x42422
	    at dotnet.native.ggch313emy.wasm:0x42465
	    at dotnet.native.ggch313emy.wasm:0x42438
	    at dotnet.native.ggch313emy.wasm:0x8cd9
	    at Module._mono_wasm_load_runtime [as mono_wasm_load_runtime] (dotnet.native.98v1chuo8c.js:8:113231)
	    at dotnet.runtime.fn94ls2wwa.js:3:188734
	dotnet.runtime.fn94ls2wwa.js:3
	 MONO_WASM: mono_wasm_load_runtime () failed [object Object]

The fix in dotnet/sdk#51269 is to update
`%(KnownWebAssemblySdkPack.WebAssemblySdkPackVersion)`.
The question is "update *to what*?"  As the files are from the
[Microsoft.NET.Workload.Mono.Toolchain.Current.Manifest-10.0.100-rc.2][0]
NuGet package, and there are only two available versions, and the
*current* `%(KnownWebAssemblySdkPack.WebAssemblySdkPackVersion)`
value is `10.0.0-rc.2.25502.107`, let's try using
`10.0.100-rc.2.25502.107`!

Will it work? 🤷‍♂️

[0]: https://www.nuget.org/packages/Microsoft.NET.Workload.Mono.Toolchain.Current.Manifest-10.0.100-rc.2/10.0.100-rc.2.25502.107

Author: jonpryor

src/Directory.Build.targets

@@ -161,6 +161,12 @@
 		<PackageReference Update="Xamarin.AndroidX.SwipeRefreshLayout" Version="1.1.0.28" />
 	</ItemGroup>
 
+	<ItemGroup Condition=" $(NETCoreSdkVersion.StartsWith('10.0.100-rc.2.')) And $(TargetFramework.StartsWith('net10.0')) ">
+		<KnownWebAssemblySdkPack Update="@(KnownWebAssemblySdkPack)">
+			<WebAssemblySdkPackVersion>10.0.100-rc.2.25502.107</WebAssemblySdkPackVersion>
+		</KnownWebAssemblySdkPack>
+	</ItemGroup>
+
 	<Target Name="ValidateSolutionPath" BeforeTargets="Build">
 		<Error Condition="$(MSBuildThisFileDirectory.Contains(' '))"
 			 Text="The Uno.UI Solution cannot build with a space in the path. Consider changing to a path without spaces."/>