refs and cleanup

Author: SimonCropp

src/Directory.Packages.props

@@ -12,7 +12,7 @@
     <PackageVersion Include="Fixie" Version="4.2.0" />
     <PackageVersion Include="Fixie.TestAdapter" Version="4.2.0" />
     <PackageVersion Include="FSharp.Core" Version="11.0.100" />
-    <PackageVersion Include="MarkdownSnippets.MsBuild" Version="28.1.0" />
+    <PackageVersion Include="MarkdownSnippets.MsBuild" Version="28.2.0" />
     <PackageVersion Include="Microsoft.Bcl.AsyncInterfaces" Version="10.0.6" />
     <PackageVersion Include="Microsoft.CodeAnalysis.Analyzers" Version="3.11.0" Pinned="true" />
     <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="4.14.0" Pinned="true" />

src/global.json

@@ -1,6 +1,6 @@
 {
   "sdk": {
-    "version": "11.0.100-preview.2.26159.112",
+    "version": "11.0.100-preview.3.26207.106",
     "allowPrerelease": true,
     "rollForward": "latestFeature"
   }