Bump Microsoft.AspNetCore.All from 2.0.8 to 2.0.9 in /WebApi/WebApi

Bumps [Microsoft.AspNetCore.All](https://github.com/aspnet/Universe) from 2.0.8 to 2.0.9.
- [Release notes](https://github.com/aspnet/Universe/releases)
- [Changelog](https://github.com/aspnet/Universe/blob/master/docs/CrossRepoBreakingChanges.md)
- [Commits](aspnet/Universe@2.0.8...2.0.9)

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

WebApi/WebApi/WebApi.csproj

@@ -10,7 +10,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.8" />
+    <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.9" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="2.1.4" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="2.1.4" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite.Core" Version="2.1.4" />