Update changelogs from fern repo (#871)

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

Author: fern-support

fern/products/sdks/overview/go/changelog/2025-09-18.mdx

@@ -1,3 +1,8 @@
+## 1.11.3
+**`(chore):`** Update retrier to match strategy with TS SDKs exactly; in particular,
+don't use jitter on `retry-after` and instead respect it exactly.
+
+
 ## 1.11.2
 **`(fix):`** Fixes bit field initialization for properties with indices >= 64.