branch freeze for upcoming version release (databricks#1196)

## Description
<!-- Provide a brief summary of the changes made and the issue they aim
to address.-->

## Testing
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## Additional Notes to the Reviewer

NO_CHANGELOG=true

Author: samikshya-db

development/.release-freeze.json

@@ -1,4 +1,4 @@
 {
-  "freeze": false,
-  "reason": "Release freeze disabled"
+  "freeze": true,
+  "reason": "Release version 3.2.1"
 }