fix: packages/docs/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-ANSIREGEX-1583908
- https://snyk.io/vuln/SNYK-JS-EJS-1049328
- https://snyk.io/vuln/SNYK-JS-EJS-2803307
- https://snyk.io/vuln/SNYK-JS-GLOBPARENT-1016905
- https://snyk.io/vuln/SNYK-JS-NTHCHECK-1586032
- https://snyk.io/vuln/SNYK-JS-POSTCSS-5926692
- https://snyk.io/vuln/SNYK-JS-TRIM-1017038
- https://snyk.io/vuln/SNYK-JS-UNSETVALUE-2400660

packages/docs/package.json

@@ -12,8 +12,8 @@
     "clear": "docusaurus clear"
   },
   "dependencies": {
-    "@docusaurus/core": "2.0.0-alpha.70",
-    "@docusaurus/preset-classic": "2.0.0-alpha.70",
+    "@docusaurus/core": "2.0.0",
+    "@docusaurus/preset-classic": "3.0.0",
     "@docusaurus/remark-plugin-npm2yarn": "^2.0.0-alpha.70",
     "@mdx-js/react": "^1.6.21",
     "clsx": "^1.1.1",