Bump StyleCop.Analyzers from 1.2.0-beta.507 to 1.2.0-beta.556

Bumps [StyleCop.Analyzers](https://github.com/DotNetAnalyzers/StyleCopAnalyzers) from 1.2.0-beta.507 to 1.2.0-beta.556.
- [Release notes](https://github.com/DotNetAnalyzers/StyleCopAnalyzers/releases)
- [Changelog](https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/KnownChanges.md)
- [Commits](DotNetAnalyzers/StyleCopAnalyzers@1.2.0-beta.507...1.2.0-beta.556)

---
updated-dependencies:
- dependency-name: StyleCop.Analyzers
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Gu.Roslyn.AnalyzerExtensions.Tests/Gu.Roslyn.AnalyzerExtensions.Tests.csproj

@@ -24,7 +24,7 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
     <PackageReference Include="NUnit" Version="4.0.1" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" PrivateAssets="all" />
-    <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.507" PrivateAssets="all" />
+    <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.556" PrivateAssets="all" />
   </ItemGroup>
 
   <ItemGroup>

Gu.Roslyn.CodeFixExtensions.Tests/Gu.Roslyn.CodeFixExtensions.Tests.csproj

@@ -24,7 +24,7 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
     <PackageReference Include="NUnit" Version="4.0.1" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" PrivateAssets="all" />
-    <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.507" PrivateAssets="all" />
+    <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.556" PrivateAssets="all" />
   </ItemGroup>
 
   <ItemGroup>