feat: upgrade gatsby-plugin-feed from 4.23.0 to 5.13.1

Snyk has created this PR to upgrade gatsby-plugin-feed from 4.23.0 to 5.13.1.

See this package in npm:
gatsby-plugin-feed

See this project in Snyk:
https://app.snyk.io/org/fengshangwuqi-github-marketplace/project/de2bfcf1-d26e-498c-9f9a-d508f52cff84?utm_source=github&utm_medium=referral&page=upgrade-pr

package.json

@@ -82,7 +82,7 @@
     "gatsby-plugin-algolia": "0.26.0",
     "gatsby-plugin-catch-links": "4.23.0",
     "gatsby-plugin-emotion": "7.23.0",
-    "gatsby-plugin-feed": "4.23.0",
+    "gatsby-plugin-feed": "5.13.1",
     "gatsby-plugin-google-gtag": "4.23.0",
     "gatsby-plugin-image": "1.9.0",
     "gatsby-plugin-mdx": "3.18.1",