fix: docs/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-PATHTOREGEXP-8482416
- https://snyk.io/vuln/SNYK-JS-NANOID-8492085

docs/package.json

@@ -18,10 +18,10 @@
     "write-heading-ids": "docusaurus write-heading-ids"
   },
   "dependencies": {
-    "@docusaurus/core": "2.4.1",
+    "@docusaurus/core": "3.6.0",
     "@docusaurus/plugin-client-redirects": "^2.4.1",
     "@docusaurus/plugin-google-analytics": "^2.4.1",
-    "@docusaurus/preset-classic": "2.4.1",
+    "@docusaurus/preset-classic": "3.6.0",
     "@mdx-js/react": "^1.6.22",
     "@you54f/theme-github-codeblock": "^0.1.1",
     "autoprefixer": "^10.4.14",