Run relevant tests

[NoaheCampbell]

Description, Motivation and Context

Instead of running every test for all changes, this aims to run only tests that are relevant to the changes made in a pull request. For example if a PR introduces changes to collectors, it would run preflight and support bundle tests since both are affected, however if a change is only made to preflight, only preflight tests would be run.

The reason behind this is to reduce time spent on waiting for tests to run and pass or fail as there are many situations where not every single test needs to be run

Checklist

• New and existing tests pass locally with introduced changes.
• Tests for the changes have been added (for bug fixes / features)
• The commit message(s) are informative and highlight any breaking changes
• Any documentation required has been added/updated. For changes to https://troubleshoot.sh/ create a PR here

Does this PR introduce a breaking change?

• Yes
• No

[cursor]

Bug: Branch Protection Bypassed by Job Event Change

The validate-success job, intended for GitHub branch protection, now only runs on push events. This prevents the required status check from being available for pull requests, breaking branch protection.