fix: update pnpm to v9.15.8

Author: renovate[bot]

package.json

@@ -38,7 +38,7 @@
     "playwright": "^1.48.2",
     "playwright-chromium": "^1.48.2"
   },
-  "packageManager": "pnpm@9.13.1+sha256.dd98691b127b5d2c4d0605b594e98ec0bcbe5fba86358184de706c3312a4e2ee",
+  "packageManager": "pnpm@9.15.8+sha512.4a64c3cd524cb562bfdad4572820776816e6f98afadbf2283a860f8497d9767f68419918e099791be8c116a1fa218f1379250d97bb706831227859b7d598122c",
   "engines": {
     "node": ">=18"
   },