Update dependency release-plan to v0.16.0

Author: renovate[bot]

package.json

@@ -40,7 +40,7 @@
     "execa": "9.5.2",
     "globals": "15.15.0",
     "prettier": "3.5.3",
-    "release-plan": "0.13.1",
+    "release-plan": "0.16.0",
     "vitest": "3.1.2"
   },
   "packageManager": "pnpm@10.8.1",