chore(deps): update pnpm to v9.15.8

Author: renovate-bot

package.json

@@ -17,7 +17,7 @@
         "ts-dual-module": "^0.6.3",
         "typescript": "^5.6.3"
     },
-    "packageManager": "pnpm@9.7.1",
+    "packageManager": "pnpm@9.15.8",
     "pnpm": {
         "overrides": {
             "cross-spawn@<6.0.6": "^6.0.6",