chore(deps): update pnpm to v8.15.1

Author: renovate[bot]

package.json

@@ -2,7 +2,7 @@
   "name": "@tresjs/core",
   "type": "module",
   "version": "3.7.0",
-  "packageManager": "pnpm@8.10.2",
+  "packageManager": "pnpm@8.15.1",
   "description": "Declarative ThreeJS using Vue Components",
   "author": "Alvaro Saburido <[email protected]> (https://github.com/alvarosabu/)",
   "license": "MIT",