Update docusaurus monorepo to v2.0.0-beta.9 (#451)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

package.json

@@ -20,8 +20,8 @@
     "prepare": "husky install"
   },
   "dependencies": {
-    "@docusaurus/core": "2.0.0-beta.8",
-    "@docusaurus/preset-classic": "2.0.0-beta.8",
+    "@docusaurus/core": "2.0.0-beta.9",
+    "@docusaurus/preset-classic": "2.0.0-beta.9",
     "clsx": "1.1.1",
     "prism-react-renderer": "1.2.1",
     "react": "17.0.2",
@@ -42,7 +42,7 @@
     ]
   },
   "devDependencies": {
-    "@docusaurus/module-type-aliases": "2.0.0-beta.8",
+    "@docusaurus/module-type-aliases": "2.0.0-beta.9",
     "@tsconfig/docusaurus": "1.0.4",
     "@typescript-eslint/eslint-plugin": "5.0.0",
     "@typescript-eslint/parser": "5.0.0",

plugins/docusaurus-plugin-alumni/package.json

@@ -10,14 +10,14 @@
     "postinstall": "yarn build"
   },
   "dependencies": {
-    "@docusaurus/utils": "2.0.0-beta.8",
-    "@docusaurus/utils-validation": "2.0.0-beta.8",
+    "@docusaurus/utils": "2.0.0-beta.9",
+    "@docusaurus/utils-validation": "2.0.0-beta.9",
     "@joshcena/docusaurus-plugin-utils": "0.1.3",
     "fs-extra": "10.0.0",
     "js-yaml": "4.1.0"
   },
   "devDependencies": {
-    "@docusaurus/module-type-aliases": "2.0.0-beta.8",
+    "@docusaurus/module-type-aliases": "2.0.0-beta.9",
     "typescript": "4.4.4"
   },
   "peerDependencies": {