Update dependencies (#6841)

This pull request updates the following dependencies

Updates from https://github.com/dotnet/corefx

- System.ComponentModel.Annotations - 4.6.0-preview.19067.6
- Microsoft.CSharp - 4.6.0-preview.19067.6
- Microsoft.Win32.Registry - 4.6.0-preview.19067.6
- System.Runtime.CompilerServices.Unsafe - 4.6.0-preview.19067.6
- System.Security.Cryptography.Cng - 4.6.0-preview.19067.6
- System.Reflection.Metadata - 1.7.0-preview.19067.6
- System.Security.Cryptography.Pkcs - 4.6.0-preview.19067.6
- System.Security.Cryptography.Xml - 4.6.0-preview.19067.6
- System.Security.Permissions - 4.6.0-preview.19067.6
- System.Security.Principal.Windows - 4.6.0-preview.19067.6
- System.ServiceProcess.ServiceController - 4.6.0-preview.19067.6
- System.Text.Encodings.Web - 4.6.0-preview.19067.6
- System.Threading.Channels - 4.6.0-preview.19067.6
- System.Data.SqlClient - 4.7.0-preview.19067.6
- System.Diagnostics.DiagnosticSource - 4.6.0-preview.19067.6
- System.Diagnostics.EventLog - 4.6.0-preview.19067.6
- System.Net.Http.WinHttpHandler - 4.6.0-preview.19067.6
- System.Net.WebSockets.WebSocketProtocol - 4.6.0-preview.19067.6
- System.Numerics.Vectors - 4.6.0-preview.19067.6
- System.IO.Pipelines - 4.6.0-preview.19067.6

Updates from https://github.com/dotnet/core-setup

- Microsoft.DotNet.PlatformAbstractions - 3.0.0-preview-27317-6
- Microsoft.Extensions.DependencyModel - 3.0.0-preview-27317-6
- Microsoft.NETCore.App - 3.0.0-preview-27317-6

Updates from https://github.com/aspnet/EntityFrameworkCore

- dotnet-ef - 3.0.0-preview.19068.1
- Microsoft.EntityFrameworkCore - 3.0.0-preview.19068.1
- Microsoft.EntityFrameworkCore.Design - 3.0.0-preview.19068.1
- Microsoft.EntityFrameworkCore.Tools - 3.0.0-preview.19068.1
- Microsoft.EntityFrameworkCore.InMemory - 3.0.0-preview.19068.1
- Microsoft.EntityFrameworkCore.Relational - 3.0.0-preview.19068.1
- Microsoft.EntityFrameworkCore.Sqlite - 3.0.0-preview.19068.1
- Microsoft.EntityFrameworkCore.SqlServer - 3.0.0-preview.19068.1

Updates from https://github.com/aspnet/Extensions

- Internal.AspNetCore.Analyzers - 3.0.0-preview.19068.1
- Microsoft.JSInterop - 3.0.0-preview.19068.1
- Microsoft.Extensions.WebEncoders - 3.0.0-preview.19068.1
- Microsoft.Extensions.ValueStopwatch.Sources - 3.0.0-preview.19068.1
- Microsoft.Extensions.TypeNameHelper.Sources - 3.0.0-preview.19068.1
- Microsoft.Extensions.Primitives - 3.0.0-preview.19068.1
- Microsoft.Extensions.ParameterDefaultValue.Sources - 3.0.0-preview.19068.1
- Microsoft.Extensions.DiagnosticAdapter - 3.0.0-preview.19068.1
- Microsoft.Extensions.DependencyInjection.Specification.Tests - 3.0.0-preview.19068.1
- Microsoft.Extensions.DependencyInjection.Abstractions - 3.0.0-preview.19068.1
- Microsoft.Extensions.DependencyInjection - 3.0.0-preview.19068.1
- Microsoft.Extensions.Configuration.Xml - 3.0.0-preview.19068.1
- Microsoft.Extensions.Configuration.UserSecrets - 3.0.0-preview.19068.1
- Microsoft.Extensions.Configuration.KeyPerFile - 3.0.0-preview.19068.1
- Microsoft.Extensions.Configuration.Json - 3.0.0-preview.19068.1
- Microsoft.Extensions.Configuration.Ini - 3.0.0-preview.19068.1
- Microsoft.Extensions.Configuration.FileExtensions - 3.0.0-preview.19068.1
- Microsoft.Extensions.Configuration.EnvironmentVariables - 3.0.0-preview.19068.1
- Microsoft.Extensions.Configuration.CommandLine - 3.0.0-preview.19068.1
- Microsoft.Extensions.Configuration.Binder - 3.0.0-preview.19068.1
- Microsoft.Extensions.Configuration.AzureKeyVault - 3.0.0-preview.19068.1
- Microsoft.Extensions.Configuration.Abstractions - 3.0.0-preview.19068.1
- Microsoft.Extensions.Configuration - 3.0.0-preview.19068.1
- Microsoft.Extensions.CommandLineUtils.Sources - 3.0.0-preview.19068.1
- Microsoft.Extensions.Caching.StackExchangeRedis - 3.0.0-preview.19068.1
- Microsoft.Extensions.Caching.SqlServer - 3.0.0-preview.19068.1
- Microsoft.Extensions.Caching.Memory - 3.0.0-preview.19068.1
- Microsoft.Extensions.Caching.Abstractions - 3.0.0-preview.19068.1
- Microsoft.Extensions.ActivatorUtilities.Sources - 3.0.0-preview.19068.1
- Microsoft.AspNetCore.Testing - 3.0.0-preview.19068.1
- Microsoft.AspNetCore.BenchmarkRunner.Sources - 3.0.0-preview.19068.1
- Microsoft.AspNetCore.Analyzer.Testing - 3.0.0-preview.19068.1
- Microsoft.Extensions.Diagnostics.HealthChecks - 3.0.0-preview.19068.1
- Microsoft.Extensions.Diagnostics.HealthChecks.Abstractions - 3.0.0-preview.19068.1
- Microsoft.Extensions.FileProviders.Abstractions - 3.0.0-preview.19068.1
- Microsoft.Extensions.FileProviders.Composite - 3.0.0-preview.19068.1
- Microsoft.Extensions.Options.DataAnnotations - 3.0.0-preview.19068.1
- Microsoft.Extensions.Options.ConfigurationExtensions - 3.0.0-preview.19068.1
- Microsoft.Extensions.Options - 3.0.0-preview.19068.1
- Microsoft.Extensions.ObjectPool - 3.0.0-preview.19068.1
- Microsoft.Extensions.Logging.TraceSource - 3.0.0-preview.19068.1
- Microsoft.Extensions.Logging.Testing - 3.0.0-preview.19068.1
- Microsoft.Extensions.Logging.EventSource - 3.0.0-preview.19068.1
- Microsoft.Extensions.Logging.Debug - 3.0.0-preview.19068.1
- Microsoft.Extensions.Logging.Console - 3.0.0-preview.19068.1
- Microsoft.Extensions.Logging.Configuration - 3.0.0-preview.19068.1
- Microsoft.Extensions.Logging.AzureAppServices - 3.0.0-preview.19068.1
- Microsoft.Extensions.Logging - 3.0.0-preview.19068.1
- Microsoft.Extensions.Localization.Abstractions - 3.0.0-preview.19068.1
- Microsoft.Extensions.Localization - 3.0.0-preview.19068.1
- Microsoft.Extensions.Http - 3.0.0-preview.19068.1
- Microsoft.Extensions.Hosting.Abstractions - 3.0.0-preview.19068.1
- Microsoft.Extensions.Hosting - 3.0.0-preview.19068.1
- Microsoft.Extensions.HostFactoryResolver.Sources - 3.0.0-preview.19068.1
- Microsoft.Extensions.HashCodeCombiner.Sources - 3.0.0-preview.19068.1
- Microsoft.Extensions.FileSystemGlobbing - 3.0.0-preview.19068.1
- Microsoft.Extensions.FileProviders.Physical - 3.0.0-preview.19068.1
- Microsoft.Extensions.FileProviders.Embedded - 3.0.0-preview.19068.1
- Microsoft.Extensions.Logging.Abstractions - 3.0.0-preview.19068.1

Updates from https://github.com/aspnet/AspNetCore-Tooling

- Microsoft.NET.Sdk.Razor - 3.0.0-preview-19068-03