fix: docs/package.json to reduce vulnerabilities (#298)

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-AXIOS-9403194

Co-authored-by: snyk-bot <[email protected]>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

Author: 3 people

docs/package.json

@@ -4,7 +4,7 @@
   "version": "1.0.0",
   "author": "Hunter Chang",
   "dependencies": {
-    "gatsby": "^3.0.0",
+    "gatsby": "^4.5.0",
     "gatsby-plugin-google-analytics": "^2.1.16",
     "gatsby-plugin-manifest": "^3.13.0",
     "gatsby-plugin-offline": "^2.0.25",