update changelogs

Author: dsinghvi

fern/products/cli-api-reference/cli-changelog/2026-04-29.mdx

@@ -1,3 +1,8 @@
+## 5.0.0
+**`(break):`** Remove `og:background-image` metadata key. Use `og:dynamic:background-image` instead,
+which is consistent with other `og:dynamic:*` settings.
+
+
 ## 4.109.0
 **`(feat):`** cli-v2: Add support for GraphQL specs in `fern.yml`. Specs can now be declared
 with a `graphql` key (plus optional `name`, `origin`, and `overrides`) and are