[BUG] Starting molecule 3.1.0, molecule-docker is no longer part of molecule

[blalop]

Description

Starting molecule 3.1.0, molecule-docker is no longer part of molecule (see ansible/molecule#2811). Thus, this template requires manual installation of molecule-docker when using molecule >= 3.1.0. It would be interesing to add support in the template.

Steps to Reproduce

Use molecule >= 3.1.0.

Expected behavior:
Successful molecule converges.

Actual behavior:

CRITICAL Failed to pre-validate.

{'driver': [{'name': ['unallowed value docker']}]}

Reproduces how often:
Always.

Environment

Molecule >= 3.1.0

Additional Information

N/A

[blalop]

Fixed in 2.8.0 release