Update one more design

designs/ihp-sg13g2/spi/rules-base.json updates:
| Metric                                        | Old      | New      | Type     |
| ------                                        | ---      | ---      | ----     |
| finish__timing__drv__setup_violation_count    |        8 |       10 | Failing  |
| finish__timing__wns_percent_delay             |   -15.74 |   -15.68 | Tighten  |

Signed-off-by: Martin Povišer <[email protected]>

Author: povik

flow/designs/ihp-sg13g2/spi/rules-base.json

@@ -56,15 +56,15 @@
         "compare": "<="
     },
     "finish__timing__drv__setup_violation_count": {
-        "value": 8,
+        "value": 10,
         "compare": "<="
     },
     "finish__timing__drv__hold_violation_count": {
         "value": 10,
         "compare": "<="
     },
     "finish__timing__wns_percent_delay": {
-        "value": -15.74,
+        "value": -15.68,
         "compare": ">="
     }
 }