fix(docs): wire in GH_TOKEN for gh CLI

[jamietanna]

Changes

We'll investigate alternatives as a follow-up, as we shouldn't need
GH_TOKEN, given we're not using that in the docs repo.

Context

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The public repository:

[jamietanna]

Skipping merge queue + PR requirements to unblock main

[github-actions]

🎉 This PR is included in version 42.38.1 🎉

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• 42.38.1

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