Bump Microsoft.CodeAnalysis.FxCopAnalyzers from 3.3.0 to 3.3.1

Bumps [Microsoft.CodeAnalysis.FxCopAnalyzers](https://github.com/dotnet/roslyn-analyzers) from 3.3.0 to 3.3.1.
- [Release notes](https://github.com/dotnet/roslyn-analyzers/releases)
- [Changelog](https://github.com/dotnet/roslyn-analyzers/blob/master/PostReleaseActivities.md)
- [Commits](dotnet/roslyn-analyzers@v3.3.0...v3.3.1)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

Directory.Build.props

@@ -21,7 +21,7 @@
   </PropertyGroup>
 
   <ItemGroup Label="Package References">
-    <PackageReference Include="Microsoft.CodeAnalysis.FxCopAnalyzers" PrivateAssets="All" Version="3.3.0" />
+    <PackageReference Include="Microsoft.CodeAnalysis.FxCopAnalyzers" PrivateAssets="All" Version="3.3.1" />
     <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" PrivateAssets="All" Version="1.0.0" />
     <PackageReference Include="Microsoft.VisualStudio.Threading.Analyzers" PrivateAssets="All" Version="16.8.51" />
     <PackageReference Include="MinVer" PrivateAssets="All" Version="2.3.1" />