[RGood]

Why

After #278 (bump upload-pages-artifact to v4.0.0), the Pages deploy hangs: deploy-pages polls "Getting Pages deployment status" with an empty status for 10 minutes, then times out and cancels. This happened twice on de8c0dc:

• https://github.com/reddit/devvit-docs/actions/runs/42881767862

The build and artifact upload succeed (157 MB, same size as before), and githubstatus shows Pages/Actions operational. Every successful deploy used the v3 artifact; both hung deploys used the v4.0.0 artifact. This PR is an A/B test to see whether the artifact version is the cause.

Change

Revert only actions/upload-pages-artifact to the previously used v3.0.1 (56afc60…), keeping the SHA pin and version comment. devvit-docs is now exempt from the "require full SHA" setting, and v3 only calls GitHub-owned actions/upload-artifact@v4, which is allowed.

What to check after merge

The "Deploy to GitHub Pages" run on main should finish in roughly 3-4 minutes (previous successes: 184-480s).

• Succeeds: v4.0.0 (or the nested change) is the cause. Next try v5.0.0 (fc324d3…) or investigate the artifact.
• Still hangs: the artifact version isn't the cause; look at Pages service/site size (157 MB) and try a longer timeout on deploy-pages.

Notes

• This workflow only runs on push to main, so it cannot be verified on the PR itself.
• Temporary. If v3 works, decide whether to keep it, move to v5, or re-enable SHA pinning with a different fix.