Update changelogs from fern repo (#1122)

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

Author: fern-support

fern/products/sdks/overview/swift/changelog/2025-10-04.mdx

@@ -1,3 +1,7 @@
+## 0.17.5
+**`(fix):`** Fixed a bug where some discriminated union variants were missing the container declaration statement in their `encode(to:)` method body.
+
+
 ## 0.17.4
 **`(fix):`** Fixed missing `gitUrl` and `minVersion` values in SPM installation instructions in README.