Fix/lint workflow 192

[Donien]

Fix #192.

This PR introduces a reusable workflow. This general workflow handles the job necessary to run both ansible-lint and yamllint on either all roles or one specific role.

All roles are linted when:

• linting rules are changed
• the linting workflow is changed

Specific roles are linted when:

• a role specific workflow is triggered (linting as first job)
• the full_stack workflow is triggered (linting as first job)

The workflow for the specific role now uses a call to the general linting workflow, while providing it with its own role name.

This approach does not completely remove linting from single workflows, but it makes those linting jobs much more readable and reduces redundant code, while also allowing for a bit more flexibility.

[widhalmt]

Nice! That seems like it could really help a lot with development.

[widhalmt]

We now have merged some major changes to the testing configuration. Could you please resolve the conflicts and have another look?

[Donien]

I've looked through the workflows again and made some changes.
This still needs a review. But as of today it should be compatible with the current main branch.