chore(deps): update pnpm to >=10.15.0 (#1019)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

packages/mercurius-codegen/package.json

@@ -80,6 +80,6 @@
     "prettier": "^3.6.2"
   },
   "engines": {
-    "pnpm": ">=10.14.0"
+    "pnpm": ">=10.15.0"
   }
 }