Update dependency @changesets/cli to ^2.21.1

Author: renovate-bot

package.json

@@ -23,7 +23,7 @@
     "ultra-runner": "^3.10.5"
   },
   "devDependencies": {
-    "@changesets/cli": "^2.17.0",
+    "@changesets/cli": "^2.21.1",
     "@ianwalter/eslint-config-react": "^5.1.1",
     "@ianwalter/renovate-config": "^1.4.6"
   },