fix(content): use contentlet language for relationship hydration instead of session language

When fetching content by inode with depth parameter, the relationship hydration
was using the session/request language (defaulting to language 1) instead of the
actual contentlet's language. This caused relationship fields to return content
in the default language even when viewing a localized version.

Closes #34289

Author: oidacra

dotCMS/src/main/java/com/dotcms/rest/api/v1/content/ContentResource.java

@@ -412,7 +412,7 @@ public Response getContent(@Context HttpServletRequest request,
 
         if (-1 != depth) {
             ContentUtils.addRelationships(contentlet, user, mode,
-                    languageId, depth, request, response);
+                    contentlet.getLanguageId(), depth, request, response);
         }
         final String variant = contentlet.getVariantId();
         contentlet = new DotTransformerBuilder().contentResourceOptions(false).content(contentlet).build().hydrate().get(0);