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] <[email protected]>

Gu.Analyzers.Benchmarks/Gu.Analyzers.Benchmarks.csproj

@@ -29,7 +29,7 @@
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.5.0" />
     <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>
 
 </Project>

Gu.Analyzers.Test/Gu.Analyzers.Test.csproj

@@ -32,7 +32,7 @@
     <PackageReference Include="NUnit" Version="4.0.1" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" PrivateAssets="all" />
     <PackageReference Include="ReflectionAnalyzers" Version="0.3.1" 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" />
     <PackageReference Include="System.Drawing.Common" Version="8.0.0" />
     <PackageReference Include="System.Reactive.PlatformServices" Version="6.0.0" />
   </ItemGroup>