Bump Microsoft.CodeAnalysis.Common from 3.7.0 to 3.8.0

Bumps [Microsoft.CodeAnalysis.Common](https://github.com/dotnet/roslyn) from 3.7.0 to 3.8.0.
- [Release notes](https://github.com/dotnet/roslyn/releases)
- [Changelog](https://github.com/dotnet/roslyn/blob/master/docs/Breaking%20API%20Changes.md)
- [Commits](https://github.com/dotnet/roslyn/commits)

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

src/Gauge.Dotnet.csproj

@@ -26,7 +26,7 @@
     <PackageReference Include="Gauge.CSharp.Core" Version="0.5.0" />
     <PackageReference Include="Gauge.CSharp.Lib" Version="0.8.1" />
     <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.2"/>
-    <PackageReference Include="Microsoft.CodeAnalysis.Common" Version="3.7.0" />
+    <PackageReference Include="Microsoft.CodeAnalysis.Common" Version="3.8.0" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="3.7.0" />
     <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
     <PackageReference Include="Microsoft.DotNet.Analyzers.Compatibility" Version="0.1.2-alpha" />