Support GitHub App authentication for GitHubPackagesContext

[canatestheta]

Idea Description

Hi all,

Would it be possible to allow the token value inside the GitHubPackagesContext secret to be GitHub App credentials (Client ID + private key) — the same compressed-JSON form already supported for GhTokenWorkflow and already handled generically by GetAccessToken in Github-Helper.psm1?

Today, delivery to GitHub Packages requires a Personal Access Token. However organizations like mine who disables PATs by policy cannot use this delivery target at all.

Thx!

Contribution (Optional)

• I would be open to contributing to this idea (implementation, documentation, testing, etc.)

[Alexander Holstrup (aholstrup1)]

We would like to support that but I don't believe GitHub allows it at the moment unfortunately. See
#2106