Update changelogs from fern repo (#5289)

Author: fern-support

fern/products/sdks/generators/go/changelog/2026-04-30.mdx

@@ -0,0 +1,8 @@
+## 1.39.2
+**`(fix):`** Fix wire test generator using hard-coded `WithToken` for bearer auth
+instead of deriving the option function name from the IR token name.
+APIs that name their bearer token field something other than `token`
+(e.g. `authToken`) now generate the correct option call (e.g.
+`option.WithAuthToken`) in both wire tests and README snippets.
+
+