Updated sample project to target .NET 8.

Author: KristofferStrube

samples/KristofferStrube.Blazor.FileAPI.WasmExample/KristofferStrube.Blazor.FileAPI.WasmExample.csproj

@@ -1,14 +1,14 @@
 <Project Sdk="Microsoft.NET.Sdk.BlazorWebAssembly">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="7.0.0-rc.1.22427.2" />
-    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="7.0.0-rc.1.22427.2" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="8.0.10" />
+    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="8.0.10" PrivateAssets="all" />
   </ItemGroup>
 
   <ItemGroup>