BUG #16654: aarch64 can not install postgres12 because of file not exist

The following bug has been logged on the website:

Bug reference: 16654
Logged by: leo star
Email address: cs19920509(at)sina(dot)com
PostgreSQL version: 12.4
Operating system: centos8
Description:

i install with following command:
dnf install -y
https://download.postgresql.org/pub/repos/yum/reporpms/EL-8-aarch64/pgdg-redhat-repo-latest.noarch.rpm;
wget -P /etc/pki/rpm-gpg/
https://ftp.postgresql.org/pub/repos/yum/RPM-GPG-KEY-PGDG-AARCH64;
rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-PGDG-AARCH64;
RUN dnf -qy module disable postgresql

it broken, error is below:
Errors during downloading metadata for repository 'pgdg-common':
- Status code: 404 for
https://download.postgresql.org/pub/repos/yum/common/redhat/rhel-8-aarch64/repodata/125ac5c05d03d63e45786ac039ac04a0ae8fcd8ab07ce6b9578aa5e4a470f62f-primary.xml.gz
(IP: 217.196.149.55)
- Status code: 404 for
https://download.postgresql.org/pub/repos/yum/common/redhat/rhel-8-aarch64/repodata/92807ce9a06c7c7ded52f5ab8af80938fef1d43c53af77c167bd67b3c47471b3-filelists.xml.gz
(IP: 217.196.149.55)
Error: Failed to download metadata for repo 'pgdg-common': Yum repo
downloading error: Downloading error(s):
repodata/125ac5c05d03d63e45786ac039ac04a0ae8fcd8ab07ce6b9578aa5e4a470f62f-primary.xml.gz
- Cannot download, all mirrors were already tried without success;
repodata/92807ce9a06c7c7ded52f5ab8af80938fef1d43c53af77c167bd67b3c47471b3-filelists.xml.gz
- Cannot download, all mirrors were already tried without success

i had checked the website and the required xml not exist