docker compose validation fails on systems with Docker Compose CLI plugin

[Normo]

For docker-compose.yml validation the role is using the docker-compose command which may not be available on systems where Docker Compose has been installed as a CLI plugin for Docker which needs to be called via docker compose (without the - dash).

TASK [external/hifis.rsd : Copy docker-compose.yml] ******************************************************************************************************************************************************************************
fatal: [localhost]: FAILED! => changed=false 
  checksum: f36df77fa7a513d26a5df7fa2c308711900b8c1e
  cmd: docker-compose -f /root/.ansible/tmp/ansible-tmp-1661158400.6968887-31446-78589091894946/source config -q
  msg: '[Errno 2] No such file or directory: b''docker-compose'''
  rc: 2
  stderr: ''
  stderr_lines: <omitted>
  stdout: ''
  stdout_lines: <omitted>