chore(deps): update pnpm to v9.15.0 [security]

Author: auvo-renovate

package.json

@@ -4,7 +4,7 @@
   "main": "index.js",
   "license": "MIT",
   "private": true,
-  "packageManager": "pnpm@9.0.4",
+  "packageManager": "pnpm@9.15.0",
   "scripts": {
     "dev:server": "pnpm -F=server start:dev",
     "dev:client": "pnpm -F=client dev --host",