update changelogs

Author: tjb9dc

fern/products/cli-api-reference/cli-changelog/2025-09-04.mdx

@@ -1,3 +1,8 @@
+## 0.70.3
+**`(fix):`** Add wrapper to avoid inline object type naming conflicts.
+Specifically, we had this issue with nullable object types.
+
+
 ## 0.70.2
 **`(fix):`** If no error examples are provided by user, autogenerate errors even for remote generation.