Update metrics for The-OpenROAD-Project/OpenROAD#9965

designs/rapidus2hp/hercules_idecode/rules-base.json updates:
| Metric                                        | Old      | New      | Type     |
| ------                                        | ---      | ---      | ----     |
| globalroute__timing__setup__tns               |   -0.339 |   -0.473 | Failing  |
| finish__timing__setup__tns                    |   -0.339 |   -0.473 | Failing  |

Signed-off-by: Matt Liberty <mliberty@precisioninno.com>

Author: maliberty

flow/designs/rapidus2hp/hercules_idecode/rules-base.json

@@ -52,7 +52,7 @@
         "compare": ">="
     },
     "globalroute__timing__setup__tns": {
-        "value": -0.339,
+        "value": -0.473,
         "compare": ">="
     },
     "globalroute__timing__hold__ws": {
@@ -68,7 +68,7 @@
         "compare": ">="
     },
     "finish__timing__setup__tns": {
-        "value": -0.339,
+        "value": -0.473,
         "compare": ">="
     },
     "finish__timing__hold__ws": {