chore(deps): update pnpm to v10

Author: renovate[bot]

stacks/core/package.json

@@ -2,7 +2,7 @@
   "name": "@bjerk/core",
   "version": "1.0.0",
   "main": "src/main.ts",
-  "packageManager": "pnpm@8.13.1",
+  "packageManager": "pnpm@10.15.1",
   "scripts": {
     "format": "biome format --write .",
     "lint": "biome lint ./"