chore(deps): update pnpm to v8.6.12

Author: renovate[bot]

package.json

@@ -21,7 +21,7 @@
     "preinstall": "npx only-allow pnpm",
     "release": "bumpp"
   },
-  "packageManager": "[email protected].2",
+  "packageManager": "[email protected].12",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/sonofmagic/loader-runner-loader.git"