Will keep this issue open to track the task of reverting skipping the tests, once the URIs are fixed.

Steps to reproduce

Update-Help -Module microsoft.powershell.core

Expected behavior

The help content for microsoft.powershell.core is updated

Actual behavior

Update-Help : Failed to update Help for the module(s) 'Microsoft.PowerShell.Core' with UI culture(s) {en-US} : The
value of the HelpInfoUri key in the module manifest must resolve to a container or root URL on a website where the
help files are stored. The HelpInfoUri
'https://msdn.microsoft.com/powershell/reference/5.1/PSWorkflowUtility/Invoke-AsWorkflow' does not resolve to a
container.
At line:1 char:1

• Update-Help -Module microsoft.powershell.core

•   + CategoryInfo          : InvalidOperation: (:) [Update-Help], Exception
    + FullyQualifiedErrorId : InvalidHelpInfoUri,Microsoft.PowerShell.Commands.UpdateHelpCommand
  
  

Environment data

Name                           Value
----                           -----
PSEdition                      Core
WSManStackVersion              3.0
CLRVersion
PSVersion                      6.0.0-alpha
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
SerializationVersion           1.1.0.1
BuildVersion                   3.0.0.0
GitCommitId                    v6.0.0-alpha.13-12-gea464fc169069126e00afce4cde263098bfc704d-dirty
PSRemotingProtocolVersion      2.3