Update changelogs from fern repo (#613)

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

Author: fern-support

fern/products/cli-api-reference/cli-changelog/2025-08-26.mdx

@@ -1,3 +1,6 @@
+## 0.66.27
+**`(fix):`** Fix readmeConfig.disabledSections type - change from set to list.
+
 ## 0.66.26
 **`(chore):`** Add whiteLabel setting to FernIr.ReadmeConfig based on org properties