PRs are blocked from merging due to "3 new 404s were detected"

[justinvp]

The "Install deps and build site" workflow for PRs is failing with:

Checking http://www-testing-pulumi-docs-origin-pr-13685-7c8079ec.s3-website.us-west-2.amazonaws.com/ for new 404s...
Checking 2014 URLs...

3 new 404s were detected:

/events/exploring-the-intersection-of-cluster-api-and-infrastructure-as-code/ : 403
/events/nginx-deploy-kubernetes-and-the-kitchen-sink/ : 403
/events/winning-the-product-agility-jackpot/ : 403

These are pages that exist on pulumi.com but do not exist at http://www-testing-pulumi-docs-origin-pr-13685-7c8079ec.s3-website.us-west-2.amazonaws.com./

Please make sure any content that's been moved has been an appropriate alias or redirect in place.

https://github.com/pulumi/docs/actions/runs/12438037440/job/34729145238#step:7:2779

This is blocking automatic merging of CLI release PRs