Update dependencies from https://github.com/aspnet/AspNetCore build 2…

…0191008.20 (dotnet#12851)

- Microsoft.AspNetCore.DeveloperCertificates.XPlat - 3.1.0-preview1.19508.20

[release/3.0.1xx] Update dependencies from dotnet/sdk (dotnet#12671)

* Update dependencies from https://github.com/dotnet/sdk build 20190917.3

- Microsoft.NET.Sdk - 3.0.100-rc2.19467.3

Merge pull request dotnet#12592 from dotnet-maestro-bot/release/2.1.8…

…xx-UpdateDependencies

Update aspnet, coresetup to servicing-31150, preview1-26216-03, respectively (release/2.1.8xx)

Merge pull request dotnet#12594 from dotnet-maestro-bot/release/2.1.6…

…xx-UpdateDependencies

Update aspnet, coresetup to servicing-31150, preview1-26216-03, respectively (release/2.1.6xx)

Merge pull request dotnet#12593 from dotnet-maestro-bot/release/2.1.5…

…xx-UpdateDependencies

Update aspnet, coresetup to servicing-31150, preview1-26216-03, respectively (release/2.1.5xx)

Update Microsoft.DotNet.Web.Spa.ProjectTemplates to Microsoft.DotNet.…

…Web.Spa.ProjectTemplates.2.2

Merge pull request dotnet#12588 from dotnet-maestro-bot/release/2.2.4…

…xx-UpdateDependencies

Update aspnet, coresetup to rtm-35537, 2.1.0, respectively (release/2.2.4xx)

Update Microsoft.DotNet.Web.Spa.ProjectTemplates to Microsoft.DotNet.…

…Web.Spa.ProjectTemplates.2.2

Merge pull request dotnet#12589 from dotnet-maestro-bot/release/2.2.2…

…xx-UpdateDependencies

Update aspnet, coresetup to rtm-35537, 2.1.0, respectively (release/2.2.2xx)

Update Microsoft.DotNet.Web.Spa.ProjectTemplates to Microsoft.DotNet.…

…Web.Spa.ProjectTemplates.2.2