test: update cake build project to net10.0

Author: filzrev

build/BenchmarkDotNet.Build/BenchmarkDotNet.Build.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <RunWorkingDirectory>$(MSBuildProjectDirectory)</RunWorkingDirectory>
     <Nullable>enable</Nullable>
   </PropertyGroup>