Firebase Cloud Functions retry=true doesn't work

[fanwgwg]

[REQUIRED] Environment info

firebase-tools: 12.5.4

Platform: macOS

[REQUIRED] Test case

Setting a gen2 cloud function's config retry: true will cause error Cannot set a retry policy on Cloud Function when deploying. However, the official firebase documentation says this is supported https://firebase.google.com/docs/functions/retries#semantics_of_retry

[REQUIRED] Steps to reproduce

exports.customeventhandler = onCustomEventPublished(
  {
    eventType: "firebase.extensions.storage-resize-images.v1.complete",
    retry: true,
  },
  (e) => {
    console.log(JSON.stringify(e));
  });

[REQUIRED] Expected behavior

retry should set the expected retry policy

[REQUIRED] Actual behavior

retry policy is not set

[colerogers]

This is a duplicate of #5484