Potential fix for code scanning alert no. 2: Workflow does not contain permissions

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Author: simonkurtz-MSFT

.github/workflows/label_non_admin_issues.yml

@@ -1,6 +1,10 @@
 
 name: Label Non-Admin Issues
 
+permissions:
+  contents: read
+  issues: write
+
 on:
   issues:
     types: [opened]