Update dependency illuminate/contracts to v12

| datasource | package              | from    | to     |
| ---------- | -------------------- | ------- | ------ |
| packagist  | illuminate/contracts | 11.44.2 | 12.6.0 |


Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

composer.json

@@ -20,7 +20,7 @@
     "require": {
         "php": "~8.1.0 || ~8.2.0 || ~8.3.0",
         "patchlevel/event-sourcing": "^3.5",
-        "illuminate/contracts": "^9.28|^10.0|^11.0"
+        "illuminate/contracts": "^9.28|^10.0|^11.0 || 12.6.0"
     },
     "require-dev": {
         "ext-pdo_sqlite": "*",