Update changelogs from fern repo (#5420)

Author: fern-support

fern/products/sdks/generators/java/changelog/2026-05-06.mdx

@@ -0,0 +1,7 @@
+## 4.8.2
+**`(fix):`** Only apply `@JsonIgnore` to query-parameter getters when the wrapped request has an
+inlined body. The 4.0.4 fix applied `@JsonIgnore` to every query getter, which made
+`toString()` / `ObjectMappers.stringify()` return `{}` for pure-query GETs and for
+referenced/file-upload/bytes bodies — none of which serialize the wrapped request.
+
+