fix: docs/package.json & docs/yarn.lock to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-TAR-15032660
- https://snyk.io/vuln/SNYK-JS-TAR-15127355

Author: snyk-bot

docs/package.json

@@ -27,14 +27,14 @@
     "update-versioned-sources": "node scripts/update_versioned_sources.js"
   },
   "dependencies": {
-    "@docusaurus/core": "2.0.0-alpha.63",
+    "@docusaurus/core": "2.0.1",
     "@docusaurus/plugin-client-redirects": "2.0.0-alpha.63",
     "@docusaurus/plugin-content-docs": "2.0.0-alpha.63",
     "@docusaurus/plugin-content-pages": "2.0.0-alpha.63",
     "@docusaurus/plugin-debug": "2.0.0-alpha.63",
-    "@docusaurus/plugin-ideal-image": "2.0.0-alpha.63",
+    "@docusaurus/plugin-ideal-image": "2.0.1",
     "@docusaurus/plugin-sitemap": "2.0.0-alpha.63",
-    "@docusaurus/theme-search-algolia": "2.0.0-alpha.63",
+    "@docusaurus/theme-search-algolia": "2.0.1",
     "@fortawesome/fontawesome-svg-core": "^1.2.30",
     "@fortawesome/free-solid-svg-icons": "^5.15.3",
     "@fortawesome/react-fontawesome": "^0.1.13",