Categorize and Suppress Azure-Managed, Non-Actionable Findings in the GitHub Repository

### Description
Update the GitHub issue repository to identify findings originating from Azure-managed resources (e.g., `MC_`-prefixed managed cluster resource groups) and categorize them as non-actionable / Azure-managed. Since these resources are fully managed by Microsoft/Azure and are outside the team’s control, the corresponding issues should be suppressed from the repository to reduce non-actionable noise.

The findings should be categorized rather than discarded, as they may provide useful context during future debugging or investigation of other issues that could potentially be related to these suppressed findings.