Update changelogs from fern repo (#1155)

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

Author: fern-support

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

@@ -1,3 +1,7 @@
+## 0.18.0
+**`(feat):`** Swift SDKs now include automatically generated wire tests via the `enableWireTests` option (defaults to true).
+
+
 ## 0.17.5
 **`(fix):`** Fixed a bug where some discriminated union variants were missing the container declaration statement in their `encode(to:)` method body.
 
@@ -7,6 +11,6 @@
 
 
 ## 0.17.3
-**`(fix):`** Reduced subclient class initializer access level to internal.
+**`(fix):`** Reduced subclient class initializer access level to `internal`.