[automated] Merge branch 'release/2.1' => 'release/3.1'

* Add sharedfx and targeting pack tests (#23045)

* Add test for assembly versions

* Add test for framework list

* Add some hardcoded lists for sharedfx and targeting pack content

* Fix failing tests

* Fix targeting pack tests

* Feedback

Update branding to 3.1.7

Use https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.win-x64/5.0.0-preview.6.20312.15 instead.

Merged PR 8358: [internal/release/3.1] Update dependencies from dnceng/internal/dotnet-aspnetcore-tooling

This pull request updates the following dependencies

[marker]: <> (Begin:7bf32a0c-3505-43af-42b0-08d79559e63d)
## From https://dev.azure.com/dnceng/internal/_git/dotnet-aspnetcore-tooling
- **Subscription**: 7bf32a0c-3505-43af-42b0-08d79559e63d
- **Build**: 20200617.6
- **Date Produced**: 6/17/2020 7:54 PM
- **Commit**: d63ec4a166a5c4f40fcbb823873cfa68cfd39eae
- **Branch**: refs/heads/internal/release/3.1
- **Updates**:
  - **Microsoft.AspNetCore.Mvc.Razor.Extensions**: from 3.1.5 to 3.1.6
  - **Microsoft.AspNetCore.Razor.Language**: from 3.1.5 to 3.1.6
  - **Microsoft.CodeAnalysis.Razor**: from 3.1.5 to 3.1.6
  - **Microsoft.NET.Sdk.Razor**: from 3.1.5 to 3.1.6

[marker]: <> (End:7bf32a0c-3505-43af-42b0-08d79559e63d)

This pull request updates the following dependencies

[marker]: <> (Begin:e908e90a-0c22-4c54-b254-08d79557a113)
## From https://github.com/dotnet/efcore
- **Subscription**: e908e90a-0c22-4c54-b254-08d79557a113
- **Build**: 20200609.7
- **Date Produced**: 6/9/2020 9:34 PM
- **Commit**: d2274a92d61afce64e4ee11b32e71a0476456703
- **Branch**: refs/heads/internal/release/3.1
- **Updates**:
  - **Microsoft.EntityFrameworkCore.Tools**: from 3.1.5 to 3.1.6
  - **Microsoft.EntityFrameworkCore.InMemory**: from 3.1.5 to 3.1.6
  - **Microsoft.EntityFrameworkCore**: from 3.1.5 to 3.1.6
  - **Microsoft.EntityFrameworkCore.Relational**: from 3.1.5 to 3.1.6
  - **Microsoft.EntityFrameworkCore.Sqlite**: from 3.1.5 to 3.1.6
  - **dotnet-ef**: from 3.1.5 to 3.1.6
  - **Microsoft.EntityFrameworkCore.SqlServer**: from 3.1.5 to 3.1.6

[marker]: <> (End:e908e90a-0c22-4c54-b254-08d79557a113)

- no-op merge

We've already shipped a 3.2.0 version of the package. The build's currently producing
3.1.6 version of the package. This changes the package version to 3.2.1

* updating signalr js package readme

* Update src/SignalR/clients/ts/signalr/README.md

Co-authored-by: Brennan <brecon@microsoft.com>

* Update PatchConfig.props

Co-authored-by: Brennan <brecon@microsoft.com>

Co-authored-by: Chris Ross <Tratcher@Outlook.com>

https://github.com/dotnet/aspnetcore-internal/issues/3616

[automated] Merge branch 'release/2.1' => 'release/3.1'

* [Blazor] Switch to use a cshtml file for errors

* Update template tests

* [Blazor] Fix manifest integrity computation

* Add a couple of tests to validate incrementalism

This avoid the container holding on to transient HttpClient instances for the lifetime of the application.

* Workaround for DomException when invoking cache.put

Invoking cache.put could sometimes result in exceptions being thrown. While this seems to have been fixed in Chromium - https://bugs.chromium.org/p/chromium/issues/detail?id=968444,
we've had several reports of this in our repo. The fix here is to write defensively when working with the cache apis since they appear to behave in unexpected ways..

Fixes https://github.com/dotnet/aspnetcore/issues/20256

* Fixup

[automated] Merge branch 'release/2.1' => 'release/3.1'

* Quarantining CanDispatchAsyncWorkToSyncContext

* Missing using

* Make method virtual

[automated] Merge branch 'release/2.1' => 'release/3.1'

Fixes #21572

Co-authored-by: Christian Wenz <info@christianwenz.de>

Merge blazor-wasm -> 3.1

This reverts commit d831217c.