Fixed conditional that skip installation of dependencies

[vhsantos]

What

• Removed block conditional that only allow install packages on Debian 9
• Add gnupg package as dependency

Why

The actual playbook works well if the pacakages (unzip, apt-transport-https, gpg) are already installed on the systems (Debian 11 in my case), but generate a error about missing packages if we try to install it on other system than Debain 9.

TASK [../roles/wazuh-ansible/roles/wazuh/wazuh-indexer : Add apt repository signing key] ***************************************************************************************************************************
fatal: [centreon-local]: FAILED! => {"changed": false, "msg": "Failed to find required executable \"gpg\" in paths: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"}