Synchronizing content with Teleport provider results in 0 deb packages

Version
rubygem-pulp_deb_client-3.3.1-1.el9.noarch
katello-repos-4.15.0-1.el9.noarch
katello-certs-tools-2.10.0-1.el9.noarch
foreman-installer-katello-3.13.0-1.el9.noarch
katello-selinux-5.0.2-1.el9.noarch
katello-common-4.15.0-1.el9.noarch
rubygem-katello-4.15.0-1.el9.noarch
katello-4.15.0-1.el9.noarch
katello-client-bootstrap-1.7.9-2.el9.noarch
rubygem-hammer_cli_katello-1.15.0-0.1.pre.main.20241104082525gitd2c7a35.el9.noarch

Describe the bug
Synchronizing from Teleport repository results in 0 debian packages in Pulp.

To Reproduce
Create a repository.
Set upstream to https://apt.releases.teleport.dev/debian
Set release to bookworm
Either leave component empty, or set it to stable/v17.
Sync.

Expected behavior
I'd expect packages to be synced.
What I see is 0 debian packages.

Additional context
https://apt.releases.teleport.dev/debian/dists/bookworm/InRelease

I can see an InRelease & Release file here. However, most apt repositories allow directory listing, but Teleport's doesn't.
I suspect Pulp requires directory listing, but one of our other sync scripts (https://github.com/apt-mirror/apt-mirror) doesn't require this and syncs Teleport just fine.

I'd expect Pulp to fetch a Release/Package file and grab the files from there, without needing directory listing.

Start by reproducing the sync against https://apt.releases.teleport.dev/debian with the bookworm release and the stated component settings. Trace how the Debian sync handles the InRelease and Release metadata when directory listing is unavailable. Done means the repository imports the expected Debian packages without requiring directory listing.