chore(deps): update npm to v12

Author: renovate[bot]

package-lock.json

@@ -39,7 +39,7 @@
   },
   "engines": {
     "node": ">=24 <25",
-    "npm": ">=11.7.0 <12"
+    "npm": ">=11.7.0 <13"
   },
   "dependencies": {
     "@aws-lambda-powertools/metrics": "2.33.1",