Updated header for the license header automated PRs

[harishp8889]

Description

1. Updated header for the license header automated PRs.
2. Enhanced the common action to handle checks in the common place.

Issues

List the issues impacted by this PR:

Issue ID
https://github.com/dell/csm/issues/1490

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Please also list any relevant details for your test configuration

• Tested against fork:
  https://github.com/harishp8889/test-powerstore-automation/actions/runs/17469303314/job/49613248482
  Fix license header inconsistencies harishp8889/test-powerstore-automation#3