[ADD] Pylint Configuration & workflow

[kga-odoo]

Description

This PR introduces a Pylint static analysis workflow to the psus repositories. It adds the necessary Pylint configuration to enable automated code quality checks on github, helping enforce consistent code standards across Odoo PSUS projects.

Why

• Static analysis via Pylint helps catch bugs, enforce style consistency, and reduce technical debt early in the development cycle before code reaches review or production.
• Adding this to the template ensures all projects bootstrapped from it inherit automated linting out of the box.

All Submissions:

• My commit respects the Odoo commit guideline
• My commit message respects the commit template
• I have used pre-commit
• The PR contains only my modification and no other external commit

Sh/Runbot:

• The commits pass test and the branch is green
• Unit tests have been implemented / standard ones rewritten
• The Staging is ISO-Prod and will contain only this dev

Upgrade:

• The data affected (if any) by the changes has been migrated

Maintenance reminders:

• Always bump the version of the manifest on the affected modules.
• Notify the developer responsible for the initial development task (when this is relevant).