Release-docs TOKEN_GITHUB to GITHUB_TOKEN

[Thorium]

Fix release yaml docs token

[Thorium]

Integration test failed but I expect it's nothing to do with this commit, they are just bit un-reliable, addressed at #2797 .

[xperiandri]

remote: Support for password authentication was removed on August 13, 2021.
remote: Please see https://docs.github.com/get-started/getting-started-with-git/about-remote-repositories#cloning-with-https-urls for information on currently recommended modes of authentication.

[Thorium]

Ok so it gets further than before, that's good news!

The messages you pasted are just informational messages. It is doing token auth, not password auth.
I think what goes wrong is this:

Authentication failed

So CI is using that user to try to push the release-docs, but the token is for some other user?

[Numpsy]

At a risk of not having a clue what I'm doing (never used gh-pages) - an observation -

The build script at

FAKE/build.fsx

Line 997 in f07f74d

let auth = sprintf "%s:x-oauth-basic@" githubToken.Value

uses x-oauth-basic when building the URL, but looking at the code for some github pages publishing actions, e.g. https://github.com/peaceiris/actions-gh-pages/blob/0b7567fde6f7517edcc13d8ffa2d89cd8734d47c/src/set-tokens.ts#L100, I see them using x-access-token instead.
Is that something that needs reviewing?