[question] Change "Question" Issue template to redirect to Discussions

[TimothyMothra]

What is the question?

There was a proposal to remove the "Question" Issue template and instead redirect to Discussions.

Here's an example of how that can be done:

• https://github.com/microsoft/powerplatform-build-tools/issues/new/choose
• https://github.com/microsoft/powerplatform-build-tools/blob/main/.github/ISSUE_TEMPLATE/config.yml

Additional context

No response

[TimothyMothra]

Discussed in 9/10 SIG meeting. We're in agreement to make this change. :)