Further dependency upgrades (#19202)

* Updates dependencies on Umbraco.Code and Microsoft.CodeAnalysis.*.

* Avoids dependency warnings on build of Web.UI project.

* Bumped version to 16.0-rc2.

Author: AndyButland

Directory.Packages.props

@@ -7,13 +7,17 @@
   <ItemGroup>
     <GlobalPackageReference Include="Nerdbank.GitVersioning" Version="3.7.115" />
     <GlobalPackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.556" />
-    <GlobalPackageReference Include="Umbraco.Code" Version="2.2.0" />
+    <GlobalPackageReference Include="Umbraco.Code" Version="2.3.0" />
     <GlobalPackageReference Include="Umbraco.GitVersioning.Extensions" Version="0.2.0" />
   </ItemGroup>
   <!-- Microsoft packages -->
   <ItemGroup>
     <PackageVersion Include="Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilation" Version="9.0.4" />
-    <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="4.10.0" />  <!-- TODO: Update the hard-dependency that Umbraco.Code has on 4.10.0 to allow update of this to latest (4.13.0). -->
+    <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="4.13.0" />
+    <PackageVersion Include="Microsoft.CodeAnalysis.Common" Version="4.13.0" />
+    <PackageVersion Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.13.0" />
+    <PackageVersion Include="Microsoft.CodeAnalysis.Workspaces.Common" Version="4.13.0" />
+    <PackageVersion Include="Microsoft.CodeAnalysis.Workspaces.MSBuild" Version="4.13.0" />
     <PackageVersion Include="Microsoft.Data.Sqlite" Version="9.0.4" />
     <PackageVersion Include="Microsoft.EntityFrameworkCore.Sqlite" Version="9.0.4" />
     <PackageVersion Include="Microsoft.EntityFrameworkCore.SqlServer" Version="9.0.4" />

src/Umbraco.Web.UI/Umbraco.Web.UI.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk.Web">
+<Project Sdk="Microsoft.NET.Sdk.Web">
   <PropertyGroup>
     <RootNamespace>Umbraco.Cms.Web.UI</RootNamespace>
     <IsPackable>false</IsPackable>
@@ -24,6 +24,11 @@
   <ItemGroup>
     <!-- Add design/build time support for EF Core migrations -->
     <PackageReference Include="Microsoft.EntityFrameworkCore.Design" PrivateAssets="all" />
+    <!-- Explicit transitive references to avoid warnings on build - see https://github.com/dotnet/efcore/issues/35143-->
+    <PackageReference Include="Microsoft.CodeAnalysis.Common" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" />
+    <PackageReference Include="Microsoft.CodeAnalysis.Workspaces.Common" />
+    <PackageReference Include="Microsoft.CodeAnalysis.Workspaces.MSBuild" />
   </ItemGroup>
 
   <ItemGroup>