Update changelogs from fern repo (#843)

Co-authored-by: Swimburger <[email protected]>

Author: fern-support

fern/products/sdks/overview/typescript/changelog/2025-09-16.mdx

@@ -1,3 +1,10 @@
+## 2.12.2
+**`(fix):`** Generate correct types for pagination with inline types.
+
+## 2.12.1
+**`(fix):`** Generate property accessors for auth and pagination with `?.` if the property is optional or nullable, and `.` if the property is required and non-nullable.
+
+
 ## 2.12.0
 **`(feat):`** Add support for custom sections in the README.md via `customSections` config option.