add net7 remove net5 (#1085)

* add net7

* remove net5

* fix build

* fix versions

* revert to 10.0 due to ci

* fix automapper

* update ver matrix

* fix warning

* fix net7 test err

* more target to basic and model pkg

tests/KubernetesClient.Classic.Tests/KubernetesClient.Classic.Tests.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <IsPackable>false</IsPackable>
     <RootNamespace>k8s.Tests</RootNamespace>
@@ -14,7 +14,6 @@
       <PackageReference Include="System.Reactive" Version="5.0.0" />
       <PackageReference Include="Nito.AsyncEx" Version="5.1.2" />
       <PackageReference Include="Portable.BouncyCastle" Version="1.9.0" />
-      <PackageReference Include="AutoMapper" Version="10.1.1" />
   </ItemGroup>
 
   <ItemGroup>