tns update next doesn't work with CLI 6+

[Fatme]

Environment
Provide version numbers for the following components (information can be retrieved by running tns info in your project folder or by inspecting the package.json of the project):

• CLI: 6.1.x
• Cross-platform modules:
• Android Runtime:
• iOS Runtime:
• Plugin(s):

Describe the bug
The tns update next command throws the following error with 6.x version:

Failed to get template information for the specified version. Original error: Failed to get information for package: tns-template-blank-vue@next

However, it works fine with NativeScript CLI below 6.0.

To Reproduce

Expected behavior

Sample project

Additional context

[kdagithub]

A similar error message occurs for the tns-template-hello-world@next:

Failed to get template information for the specified version. Original error: Failed to get information for package: tns-template-hello-world@next

[kokosky93]

Same problem here. I am trying to update from 6.0.1. Last version to I can update is 6.3.1