ui: increment cluster-ui version to 22.1

After the release branch for 21.2 version is cut,
the version of `cluster-ui` NPM package is changed
to next major version 22.1.x on master branch

Release note: none

Release justification: non-production code changes

pkg/ui/workspaces/cluster-ui/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@cockroachlabs/cluster-ui",
-  "version": "21.2.0-prerelease-4",
+  "version": "22.1.0-prerelease-1",
   "description": "Cluster UI is a library of large features shared between CockroachDB and CockroachCloud",
   "repository": {
     "type": "git",