chore(deps): update dependency testcontainers to v12

Author: renovate[bot]

package.json

@@ -51,7 +51,7 @@
     "prettier": "3.8.3",
     "semantic-release": "25.0.3",
     "supertest": "7.2.2",
-    "testcontainers": "11.14.0",
+    "testcontainers": "12.0.0",
     "vitest": "4.1.6"
   },
   "repository": {