chore(deps): update pnpm to v8.15.3

Author: renovate[bot]

package.json

@@ -14,6 +14,6 @@
     "tsconfig": "workspace:*",
     "turbo": "latest"
   },
-  "packageManager": "pnpm@8.6.10",
+  "packageManager": "pnpm@8.15.3",
   "name": "my-turborepo"
 }