Update microwatt metrics for rsz Fix split length The-OpenROAD-Project/OpenROAD#4980

| Metric                                    | Old      | New      | Type     |
| ------                                    | ---      | ---      | ----     |
| detailedroute__route__wirelength          |  8807169 |  8799572 | Tighten  |
| detailedroute__route__drc_errors          |        1 |        0 | Tighten  |
| finish__timing__drv__hold_violation_count |      130 |      295 | Failing  |

Signed-off-by: Matt Liberty <[email protected]>

Author: maliberty