Update changelogs from fern repo (#5091)

Co-authored-by: Swimburger <3382717+Swimburger@users.noreply.github.com>

Author: fern-support

fern/products/cli-api-reference/cli-changelog/2026-04-22.mdx

@@ -1,3 +1,7 @@
+## 4.86.1
+**`(chore):`** When an OpenAPI endpoint has multiple request and response examples that cannot be paired by matching `summary` fields, the CLI now emits a warning explaining which response example had no match and how to fix it, rather than silently producing an extra example with an empty request body.
+
+
 ## 4.86.0
 **`(feat):`** Allow `theme.product-switcher: tabs` in `docs.yml`. When set, the product
 switcher renders as a row of tabs in the docs header on desktop, with a