chore(check): verify that UPGRADE.md has changed after Role change

[lukidzi]

Motivation

We want to avoid frequent changes to RBAC and ensure that users who upgrade and have RBAC creation disabled will see a note about it in the UPGRADE.md.

Implementation information

I've added a check/rbac command to check for changed files, specifically looking for Role, RoleBinding, ClusterRole, or ClusterRoleBinding. It also verifies that UPGRADE.md has been updated. If any RBAC-related changes are detected, the command will fail with a message.

Supporting documentation

Fix: #13386

[github-actions]

Reviewer Checklist

🔍 Each of these sections need to be checked by the reviewer of the PR 🔍:
If something doesn't apply please check the box and add a justification if the reason is non obvious.

• Is the PR title satisfactory? Is this part of a larger feature and should be grouped using > Changelog?
• PR description is clear and complete. It Links to relevant issue as well as docs and UI issues
• This will not break child repos: it doesn't hardcode values (.e.g "kumahq" as an image registry)
• IPv6 is taken into account (.e.g: no string concatenation of host port)
• Tests (Unit test, E2E tests, manual test on universal and k8s)
  • Don't forget ci/ labels to run additional/fewer tests
• Does this contain a change that needs to be notified to users? In this case, UPGRADE.md should be updated.
• Does it need to be backported according to the backporting policy? (this GH action will add "backport" label based on these file globs, if you want to prevent it from adding the "backport" label use no-backport-autolabel label)