Update changelogs from fern repo (#5310)

Co-authored-by: dsinghvi <10870189+dsinghvi@users.noreply.github.com>

Author: fern-support

fern/products/cli-api-reference/cli-changelog/2026-05-01.mdx

@@ -1,3 +1,9 @@
+## 5.7.3
+**`(fix):`** Fix image path resolution on Windows for `fern docs dev` and `fern generate docs`.
+Path utilities (`resolve`, `dirname`, `join`) now normalize output to forward slashes,
+preventing file ID lookup mismatches caused by mixed path separators on Windows.
+
+
 ## 5.7.2
 **`(fix):`** Allow BCP 47 locale tags (e.g. `ja-JP`, `pt-BR`, `zh-Hans-CN`) in the `translations` and `languages` fields of `docs.yml`. Previously these were rejected by the JSON-schema validator with `must be one of [en, es, fr, ...]`.