Replace instances of rocm-libraries with rocm-systems in workflows

.github/scripts/pr_category_label.py

@@ -22,9 +22,9 @@ Outputs:
 
 Example Usage:
     To run in debug mode and perform a dry-run (no changes made):
-        python pr_auto_label.py --repo ROCm/rocm-libraries --pr <pr-number> --dry-run --debug
+        python pr_auto_label.py --repo ROCm/rocm-systems --pr <pr-number> --dry-run --debug
     To run in debug mode and apply label changes:
-        python pr_auto_label.py --repo ROCm/rocm-libraries --pr <pr-number> --debug
+        python pr_auto_label.py --repo ROCm/rocm-systems --pr <pr-number> --debug
 """
 
 import argparse