Separate official and unofficial pipelines

[matteo-prosperi]

Separate official and unofficial pipelines.
This is to satisfy the requirement that pipelines marked as production never use the unofficial templates.

[AArnott]

This is going to need some changes to the in-house wiki for the template as well, which documents pipelines and their purposes.
And we'll probably want to send a notification within VS Core template users so they know to merge the latest template and adjust their pipelines manually.
Can you take care of all that in tandem with this, and let me know when you're ready for this to merge?

[matteo-prosperi]

This is going to need some changes to the in-house wiki for the template as well, which documents pipelines and their purposes. And we'll probably want to send a notification within VS Core template users so they know to merge the latest template and adjust their pipelines manually. Can you take care of all that in tandem with this, and let me know when you're ready for this to merge?

I will first test these changes on the Gladstone repo. Then update the wiki, notify users and finally complete this PR. Thanks for confirming that these changes are reasonable, so I can go ahead with my testing :-)

[AArnott]

@matteo-prosperi You're going to need to set up git commit signing and rebase your commits for them to be merged. Repos exist that merge from this template that require commits to be signed, so this repo similarly requires this.

[adrianvmsft]

Shouldn't the Expand script replace placeholders in both official.yml and unofficial.yml?

[AArnott]

@matteo-prosperi I had to squash your PR because github wouldn't let me merge it. I don't know why. It gave an error about an invalid email address that I've never seen before. Your commit had this:

commit 82ed74f8a6d8392aaea9c66c3652642d72c0df4c (HEAD -> dev/maprospe/unofficial_yml)
Author: Matteo Prosperi <[email protected]>
Date:   Mon Jan 13 14:46:01 2025 -0800

That email address makes me wonder... how did you create this commit?