convex-js: update the changelog for the index deletion check (#43482)

GitOrigin-RevId: fb636e83b070bddd44c856504b36de0c342da216

Author: Nicolapps

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+## 1.29.2
+
 - When running `npx convex deploy`, the CLI will now ask for explicit
   confirmation before deleting large indexes. This change is helpful for
   avoiding situations where an index is accidentally deleted and backfilling it