* Change to FQCN with ansible-lint fixer
Since ansible-base 2.10 (later ansible-core), FQCN is the new way to go.
Updated .ansible-lint with a production profile and removed fqcn in skip_list.
Updated .yamllint with rules needed.
Ran ansible-lint --fix=all, then manually applied some minor changes.
* Changed octal value in molecule/ipv6/prepare.yml
* Test CentOS 7 in CI
* Drop support for CentOS, test on Rocky and Debian
* Fix reset playbook for Rocky Linux
* Fix typo
* Disable firewalld during testing
Co-authored-by: Techno Tim <timothystewart6@gmail.com>