SOLVED: Status code: 403 for https://rhui.eu-west-1.aws.ce.redhat.com/pulp/content/content/dist/rhel9/rhui/9/x86_64/appstream/os/repodata/repomd.xml

Error trying to update or install packages on AWS RHEL instances:

Red Hat Enterprise Linux 9 for x86_64 - AppStream from RHUI (RPMs) 1.9 kB/s | 153 B 00:00
Errors during downloading metadata for repository 'rhel-9-appstream-rhui-rpms':
- Status code: 403 for https://rhui.eu-west-1.aws.ce.redhat.com/pulp/content/content/dist/rhel9/rhui/9/x86_64/appstream/os/repodata/repomd.xml (IP: 52.212.206.51)
Error: Failed to download metadata for repo 'rhel-9-appstream-rhui-rpms': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried