So ill luck modifying the configuration files. Just for completion sake, I think that changing the file to:
# renew_before_expiry = 30 days
version = 0.31.0
archive_dir = /path/to/certs_folder
cert = /path/to/cert.pem
privkey = /path/to/privkey.pem
chain = /path/to/chain.pem
fullchain = /path/to/fullchain.pem
# Options used in the renewal process
[renewalparams]
authenticator = dns-cloudflare
installer = apache
account = <ACCOUNT_KEY>
server = https://acme-v02.api.letsencrypt.org/directory
dns_cloudflare_credentials = /home/pryrios/.secrets/cloudflare.ini
may do the trick, but nonetheless I prefer certbot to manage this file as instructed on documentation. (changes are to authenticator and adding dns_cloudflare_credentials param).