Add pnpm configuration to package.json for onlyBuiltDependencies

- Updated package.json to include a new pnpm configuration section.
- Added onlyBuiltDependencies with esbuild as a dependency to be built.
- This change ensures

Author: ryota-murakami

package.json

@@ -48,5 +48,10 @@
   },
   "lint-staged": {
     "*": "prettier --ignore-unknown --write"
+  },
+  "pnpm": {
+    "onlyBuiltDependencies": [
+      "esbuild"
+    ]
   }
 }