DefaultHotReloadClient: Link cancellation token to GetUpdateCapabilitiesAsync Task

[LittleLittleCloud]

Describe the bug

A clear and concise description of what the bug is.

The cancellation token is not passed to the GetCapabilitiesTask in DefaultHotReloadClient.GetUpdateCapabilitiesAsync. It prevents the caller to cancel the underlying task.

Link to code:

• sdk/src/BuiltInTools/HotReloadClient/DefaultHotReloadClient.cs

  Line 169 in dc02694

  public override Task<ImmutableArray<string>> GetUpdateCapabilitiesAsync(CancellationToken cancellationToken)