BUG #18299: yum.postgresql.org/keys website is down (404 error) and can't download keys

The following bug has been logged on the website:

Bug reference:      18299
Logged by:          yum.postgresql.org/keys website is down (404 error)
Email address:      emeric.soulenq@magellium.fr
PostgreSQL version: Unsupported/Unknown
Operating system:   red hat 8
Description:

Hello
on old repo
https://yum.postgresql.org/repopackages/

"If you do not have our GPG keys already, you can download them from
here."
the link 
https://yum.postgresql.org/keys
is down
it show a  404 error

so now after dnf update 

Échec du téléchargement des métadonnées pour le dépôt « pgdg-common » :
repomd.xml GPG signature verification error: Bad GPG signature


maybye there is a link with theese news keys :
https://yum.postgresql.org/news/pgdg-rpm-repo-gpg-key-update/


Thanks