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]>

Author: dependabot[bot]

Directory.Packages.props

@@ -13,7 +13,7 @@
         <GlobalPackageReference Include="PolySharp"
                                 Version="1.14.1" />
         <GlobalPackageReference Include="StyleCop.Analyzers"
-                                Version="1.2.0-beta.507" />
+                                Version="1.2.0-beta.556" />
     </ItemGroup>
 
     <ItemGroup>