Use ec2_*_info instead of _facts

[ssasso]

It seems that, on newer versions of Ansible, it's not possible to use ec2_*_facts anymore.

(env) root@ip-172-31-2-7:~/build-ami# ansible --version
ansible [core 2.13.1]
  config file = None
  configured module search path = ['/root/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /root/build-ami/env/lib/python3.9/site-packages/ansible
  ansible collection location = /root/.ansible/collections:/usr/share/ansible/collections
  executable location = /root/build-ami/env/bin/ansible
  python version = 3.9.2 (default, Feb 28 2021, 17:03:44) [GCC 10.2.1 20210110]
  jinja version = 3.1.2
  libyaml = True