[testing] Add monitoring linter

[nabokihms]

Signed-off-by: m.nabokikh maksim.nabokikh@flant.com

Description

• Move clause to deploy Prometheus CRDs to the helm_lib code
• Refactor monitroing.yaml files
• Add linter

Why do we need it, and what problem does it solve?

We need this linter to not forget to add enable monitoring if there are dashboards and alert rules. The content of the trigger file is predictable, so we can also validate it to avoid logical mistakes.

Changelog entries

module: testing
type: feature
description: Add monitoring trigger linter for modules