fix: upgrade axios from 0.20.0 to 0.28.0

Snyk has created this PR to upgrade axios from 0.20.0 to 0.28.0.

See this package in npm:
https://www.npmjs.com/package/axios

See this project in Snyk:
https://app.snyk.io/org/sammyfilly/project/97629ac8-ff7b-4f03-8ef9-27e6e493381b?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

examples/using-local-plugins/package.json

@@ -9,7 +9,7 @@
     "serve": "gatsby serve"
   },
   "dependencies": {
-    "axios": "^0.20.0",
+    "axios": "^0.28.0",
     "gatsby": "next",
     "react": "^18.2.0",
     "react-dom": "^18.2.0"