Fix pnpm engine specification (#248)

Author: leaftail1880

package.json

@@ -120,6 +120,6 @@
   "engines": {
     "node": ">=18.0.0",
     "npm": ">=9.0.0",
-    "pnpm": ">= 8.6.0"
+    "pnpm": ">=8.6.0"
   }
 }