Update .net version

Author: Cisien

CSharpRepl/CSharpRepl.csproj

@@ -15,11 +15,11 @@
     <ItemGroup>
         <PackageReference Include="AngouriMath" Version="1.3.0" />
         <PackageReference Include="ICSharpCode.Decompiler" Version="3.2.0.3856" />
-        <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Scripting" Version="4.4.0-4.final" />
+        <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Scripting" Version="4.5.0-1.22524.5" />
         <PackageReference Include="Newtonsoft.Json" Version="13.0.2-beta2" />
-        <PackageReference Include="NuGet.Packaging" Version="6.3.1" />
-        <PackageReference Include="NuGet.Protocol" Version="6.3.1" />
-        <PackageReference Include="NuGet.Resolver" Version="6.3.1" />
+        <PackageReference Include="NuGet.Packaging" Version="6.5.0-preview.1.35" />
+        <PackageReference Include="NuGet.Protocol" Version="6.5.0-preview.1.35" />
+        <PackageReference Include="NuGet.Resolver" Version="6.5.0-preview.1.35" />
         <PackageReference Include="Seq.Extensions.Logging" Version="6.1.0" />
     </ItemGroup>
     <ItemGroup>