Updating external dependencies (#1268)
Updating external dependencies (#1268)

New versions:
    MicrosoftNETCoreDotNetAppHostPackageVersion
    MicrosoftNETCoreAppPackageVersion
aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore