Missing deb.torproject.org-keyring for Debian forky

Steps to reproduce

1. Setup a Debian forky or sid system.
2. Try to install deb.torproject.org-keyring using deb.torproject.org. Example procedure.

What is the current bug behavior?

Currently, the package is not installed as it maybe be unavailable for the forky suite.

Example output from an affected pipeline:

+ tee /etc/apt/sources.list.d/tor.list
+ cat
deb     [signed-by=/usr/share/keyrings/deb.torproject.org-keyring.gpg] https://deb.torproject.org/torproject.org forky main
deb-src [signed-by=/usr/share/keyrings/deb.torproject.org-keyring.gpg] https://deb.torproject.org/torproject.org forky main
+ ./test/scripts/get-tor-debian-key /usr/share/keyrings/deb.torproject.org-keyring.gpg
get-tor-debian-key: downloaded https://deb.torproject.org/torproject.org/A3C4F0F979CAA22CDBA8F512EE8CBC9E886DDD89.asc key matches the expected fingerprint A3C4F0F979CAA22CDBA8F512EE8CBC9E886DDD89
get-tor-debian-key: saving key A3C4F0F979CAA22CDBA8F512EE8CBC9E886DDD89 on /usr/share/keyrings/deb.torproject.org-keyring.gpg...
+ apt-get update
Hit:1 http://deb.debian.org/debian sid InRelease
Get:2 https://deb.torproject.org/torproject.org forky InRelease [2769 B]
Fetched 2769 B in 0s (7673 B/s)
Reading package lists...
+ apt-get install -y tor deb.torproject.org-keyring
Reading package lists...
Building dependency tree...
Reading state information...
E: Unable to locate package deb.torproject.org-keyring
E: Couldn't find any package by glob 'deb.torproject.org-keyring'
E: Couldn't find any package by regex 'deb.torproject.org-keyring'

What is the expected correct behavior?

A deb.torproject.org-keyring package is expected to be available for Debian forky.

When did this start?

This is a follow up from #42256 (closed).

Relevant logs and/or screenshots

The affected pipeline has the full log.

Possible fixes

This can be fixed by uploading deb.torproject.org-keyring in the forky suite.