Problem with Ansible to upgrade CentOS 8

I have a problem updating Centos 8 systems due to repositories. This is my task and it works on Red Hat and Almalinux:

• name: Install the latest version of yum-utils
  become: yes
  become_method: sudo
  yum:
  name: yum-utils
  state: latest
  update_cache: yes

When I run the Playbook, I get this result:

"Failed to download metadata for repo 'AppStream': Cannot download repomd.xml: Cannot download repodata / repomd.xml:"

I replaced the repositories with http://vault.centos.org/$contentdir/$releasever/AppStream/$basearch/os/ and, running the "yum update" command directly from the CentOS system it works, from the playbook it doesn't. I can't understand, can anyone help me?

The versions of Python are 3.6.8 and Ansible 2.9.27

Thanks for your help