Bump dev deps (polkadot-js#450)

Author: jacogr

package.json

@@ -22,7 +22,7 @@
     "@docusaurus/core": "2.4.1",
     "@docusaurus/preset-classic": "2.4.1",
     "@mdx-js/react": "^1.6.22",
-    "@polkadot/dev": "^0.76.17",
+    "@polkadot/dev": "^0.76.22",
     "@polkadot/typegen": "^10.9.1",
     "clsx": "^1.2.1",
     "react": "^18.2.0",