Update dependency StyleCop.Analyzers to 1.2.0-beta.556

Author: renovate[bot]

Directory.Build.props

@@ -27,7 +27,7 @@
   <ItemGroup Label="Package References">
     <PackageReference Include="Microsoft.VisualStudio.Threading.Analyzers" PrivateAssets="All" Version="17.12.19" />
     <PackageReference Include="MinVer" PrivateAssets="All" Version="4.3.0" />
-    <PackageReference Include="StyleCop.Analyzers" PrivateAssets="All" Version="1.2.0-beta.507" />
+    <PackageReference Include="StyleCop.Analyzers" PrivateAssets="All" Version="1.2.0-beta.556" />
   </ItemGroup>
 
 </Project>