chore(deps): update dependency @pact-foundation/pact to v16.3.0

Ref: PACT-445

Author: pactflow-renovate-bot[bot]

package-lock.json

@@ -30,7 +30,7 @@
   },
   "devDependencies": {
     "@biomejs/biome": "2.4.8",
-    "@pact-foundation/pact": "16.2.0",
+    "@pact-foundation/pact": "16.3.0",
     "@testing-library/jest-dom": "6.9.1",
     "@types/node": "25.5.0",
     "@types/react": "19.2.14",