Update analyzer

Author: JohanLarsson

WpfAnalyzers.Benchmarks/WpfAnalyzers.Benchmarks.csproj

@@ -25,7 +25,7 @@
     <PackageReference Include="Gu.Roslyn.Asserts" Version="4.2.0" />
     <PackageReference Include="IDisposableAnalyzers" Version="4.0.2" PrivateAssets="all" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.0.1" />
-    <PackageReference Include="Microsoft.VisualStudio.Threading.Analyzers" Version="17.1.46" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.VisualStudio.Threading.Analyzers" Version="17.2.20-alpha" PrivateAssets="all" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.1.0" />
     <PackageReference Include="NUnit" Version="3.13.3" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.2.1" PrivateAssets="all" />

WpfAnalyzers.Test.Netcore/WpfAnalyzers.Test.Netcore.csproj

@@ -28,7 +28,7 @@
     <PackageReference Include="Gu.Roslyn.Asserts.Analyzers" Version="4.0.0" PrivateAssets="all" />
     <PackageReference Include="IDisposableAnalyzers" Version="4.0.2" PrivateAssets="all" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.0.1" />
-    <PackageReference Include="Microsoft.VisualStudio.Threading.Analyzers" Version="17.1.46" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.VisualStudio.Threading.Analyzers" Version="17.2.20-alpha" PrivateAssets="all" />
     <PackageReference Include="NUnit" Version="3.13.3" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.2.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.1.0" />

WpfAnalyzers.Test/WpfAnalyzers.Test.csproj

@@ -27,7 +27,7 @@
     <PackageReference Include="Gu.Roslyn.Asserts.Analyzers" Version="4.0.0" PrivateAssets="all" />
     <PackageReference Include="IDisposableAnalyzers" Version="4.0.2" PrivateAssets="all" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.0.1" />
-    <PackageReference Include="Microsoft.VisualStudio.Threading.Analyzers" Version="17.1.46" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.VisualStudio.Threading.Analyzers" Version="17.2.20-alpha" PrivateAssets="all" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.1.0" />
     <PackageReference Include="NUnit" Version="3.13.3" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.2.1" PrivateAssets="all" />

WpfAnalyzers/WpfAnalyzers.csproj

@@ -83,7 +83,7 @@
     <PackageReference Include="Gu.Roslyn.Extensions.Source" Version="0.16.6" PrivateAssets="all" />
     <PackageReference Include="IDisposableAnalyzers" Version="4.0.2" PrivateAssets="all" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.0.1" PrivateAssets="all" />
-    <PackageReference Include="Microsoft.VisualStudio.Threading.Analyzers" Version="17.1.46" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.VisualStudio.Threading.Analyzers" Version="17.2.20-alpha" PrivateAssets="all" />
     <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.435" PrivateAssets="all" />
   </ItemGroup>