fix: require --logs, --reports, and --results to prevent NoneType crash in genMetrics

[ashnaaseth2325-oss]

1. SUMMARY

This PR makes --logs, --reports, and --results required CLI arguments in genMetrics.py to prevent runtime crashes caused by missing values.
The change is localized to argument parsing in flow/util/genMetrics.py and improves error handling without altering core logic.

---

2. FIX

# Before
parser.add_argument("--logs", help="Path to logs")
parser.add_argument("--reports", help="Path to reports")
parser.add_argument("--results", help="Path to results")

# After
parser.add_argument("--logs", required=True, help="Path to logs")
parser.add_argument("--reports", required=True, help="Path to reports")
parser.add_argument("--results", required=True, help="Path to results")

---

3. VERIFICATION

Ran the script without --logs, --reports, and --results to reproduce the issue—previously it crashed with a confusing TypeError. After the fix, it now fails immediately with a clear argparse message indicating the missing required arguments. When all three flags are provided, the script runs normally without errors.

[ashnaaseth2325-oss]

Hi @maliberty @eder-matheus,
Kindly review this PR.
Thanks!