deps: skuba 15.3.0

Author: renovate[bot]

package.json

@@ -20,7 +20,7 @@
     "@types/node": "^22.13.14",
     "dotenv": "16.6.1",
     "esbuild": "~0.27.0",
-    "skuba": "14.1.1"
+    "skuba": "15.3.0"
   },
   "packageManager": "pnpm@10.28.1",
   "engines": {