Update dependency Microsoft.VisualStudio.Threading.Analyzers to 17.14.15

Author: renovate[bot]

Directory.Packages.props

@@ -6,7 +6,7 @@
     <PackageVersion Include="StyleCop.Analyzers" Version="1.2.0-beta.556" />
     <PackageVersion Include="Microsoft.CodeAnalysis.NetAnalyzers" Version="9.0.0" />
     <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="8.0.0" />
-    <PackageVersion Include="Microsoft.VisualStudio.Threading.Analyzers" Version="17.13.61" />
+    <PackageVersion Include="Microsoft.VisualStudio.Threading.Analyzers" Version="17.14.15" />
     <PackageVersion Include="IDisposableAnalyzers" Version="4.0.8" />
     <PackageVersion Include="GitVersion.MsBuild" Version="6.3.0" />