Bump Microsoft.AspNetCore.All in /WebViewer/Microsoft.BPerf.StackViewer (#14)

Bumps [Microsoft.AspNetCore.All](https://github.com/aspnet/Universe) from 2.0.6 to 2.0.9.
- [Release notes](https://github.com/aspnet/Universe/releases)
- [Changelog](https://github.com/aspnet/Universe/blob/master/docs/CrossRepoBreakingChanges.md)
- [Commits](https://github.com/aspnet/Universe/compare/2.0.6...2.0.9)

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

WebViewer/Microsoft.BPerf.StackViewer/Microsoft.BPerf.StackViewer.csproj

@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.6" />
+    <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.9" />
     <PackageReference Include="Newtonsoft.Json" Version="11.0.1" />
     <PackageReference Include="StyleCop.Analyzers" Version="1.0.2" />
     <PackageReference Include="Microsoft.BPerf.Dia2Lib" Version="1.0.0" />