build(deps): bump gatsby-plugin-mdx from 3.11.1 to 3.13.0 in /docs (golangci#2815)

Author: dependabot[bot]

docs/package-lock.json

@@ -17,7 +17,7 @@
     "gatsby-plugin-emotion": "^7.11.0",
     "gatsby-plugin-google-analytics": "^4.13.0",
     "gatsby-plugin-manifest": "^4.13.0",
-    "gatsby-plugin-mdx": "^3.11.1",
+    "gatsby-plugin-mdx": "^3.13.0",
     "gatsby-plugin-netlify": "^4.3.1",
     "gatsby-plugin-netlify-cache": "^2.0.0",
     "gatsby-plugin-offline": "^5.13.0",