chore(ci): Build docs

[KyleFromNVIDIA]

No description provided.

[bdice]

Can we make the docs build into a separate CI job, and end with calling rapids-upload-docs? Try to mirror this script: https://github.com/rapidsai/cudf/blob/branch-24.06/ci/build_docs.sh

Then we'll be able to preview the docs as CI artifacts.

[ajschmidt8]

Can we make the docs build into a separate CI job, and end with calling rapids-upload-docs? Try to mirror this script: https://github.com/rapidsai/cudf/blob/branch-24.06/ci/build_docs.sh

Then we'll be able to preview the docs as CI artifacts.

There's a few things to be aware of here.

rapids-upload-docs requires AWS credentials to upload to S3.

We use this OIDC action to obtain temporary AWS credentials https://github.com/aws-actions/configure-aws-credentials/.

That action requires that the id-token permission on the calling workflow be set to write.

However, when using the pull_request event to trigger workflows from forks, that permission can only ever have a maximum permission of read: https://docs.github.com/en/actions/security-guides/automatic-token-authentication#permissions-for-the-github_token.

Therefore if you want to set id-token: write, you'll need to either move away from using forked PRs (e.g. open PRs from branches within the source repository) or switch to copy-pr-bot, which is how we get away with it in other RAPIDS libraries.