chore(deps): update pnpm to v8.15.5

Author: renovate[bot]

package.json

@@ -136,7 +136,7 @@
     "vitest": "1.3.1",
     "vue": "3.4.21"
   },
-  "packageManager": "[email protected].4",
+  "packageManager": "[email protected].5",
   "engines": {
     "node": ">=18.0.0",
     "npm": ">=9.0.0"