fix version of dependencies of publishable package

packages/pluginkit/package.json

@@ -21,7 +21,7 @@
     "test": "vitest run --coverage"
   },
   "dependencies": {
-    "@growi/core": "link:../core",
+    "@growi/core": "^0.9.0",
     "extensible-custom-error": "^0.0.7"
   },
   "devDependencies": {