chore(deps): update pnpm to v9.15.3

Author: renovate[bot]

package.json

@@ -76,5 +76,5 @@
     "typescript-eslint": "~8.19.0",
     "vitest": "~2.1.8"
   },
-  "packageManager": "pnpm@9.15.2"
+  "packageManager": "pnpm@9.15.3"
 }