chore: add packageManager field

sapphi-red · sapphi-red · commit 3ec97f49c3d0 · 2023-02-26T23:42:12.000+09:00
diff --git a/package.json b/package.json
@@ -57,5 +57,6 @@
   },
   "dependencies": {
     "@actions/core": "^1.10.0"
-  }
+  },
+  "packageManager": "pnpm@7.28.0"
 }
