Update to .NET SDK 9.0.0 and CMS 15.0.0-rc4

Author: ronaldbarendse

Directory.Packages.props

@@ -9,10 +9,10 @@
     <GlobalPackageReference Include="Umbraco.GitVersioning.Extensions" Version="0.2.0" />
   </ItemGroup>
   <PropertyGroup>
-    <UmbracoCmsPackageVersion>[15.0.0-rc3, 16)</UmbracoCmsPackageVersion>
+    <UmbracoCmsPackageVersion>[15.0.0-rc4, 16)</UmbracoCmsPackageVersion>
   </PropertyGroup>
   <ItemGroup>
-    <PackageVersion Include="Azure.Storage.Blobs" Version="12.22.2" />
+    <PackageVersion Include="Azure.Storage.Blobs" Version="12.23.0" />
     <PackageVersion Include="SixLabors.ImageSharp.Web.Providers.Azure" Version="3.1.3" />
     <PackageVersion Include="Umbraco.Cms.Imaging.ImageSharp" Version="$(UmbracoCmsPackageVersion)" />
     <PackageVersion Include="Umbraco.Cms.Web.Common" Version="$(UmbracoCmsPackageVersion)" />

examples/Umbraco.StorageProviders.AzureBlob.TestSite/Umbraco.StorageProviders.AzureBlob.TestSite.csproj

@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Umbraco.Cms" Version="15.0.0-rc3" />
+    <PackageReference Include="Umbraco.Cms" Version="15.0.0-rc4" />
     <PackageReference Include="Umbraco.TheStarterKit" Version="14.0.0" />
   </ItemGroup>
 

global.json

@@ -1,7 +1,6 @@
 {
   "sdk": {
-    "version": "9.0.100-rc.2.24474.11",
-    "rollForward": "latestFeature",
-    "allowPrerelease": true
+    "version": "9.0.100",
+    "rollForward": "latestFeature"
   }
 }