cloudflare/workers-sdk @cloudflare/edge-preview-authenticated-proxy@0.3.1 on GitHub

#12753 ea8b1a4 Thanks @petebacondarwin! - Replace deprecated promjs library with MetricsRegistry from @cloudflare/workers-utils/prometheus-metrics
The promjs library has been unmaintained since 2022 and has a broken package.json requiring workarounds. It has been replaced with a lightweight MetricsRegistry class in @cloudflare/workers-utils/prometheus-metrics that produces byte-identical Prometheus text exposition format output.
#13021 973dfdd Thanks @penalosa! - Restore the /exchange preview session endpoint.