fix: DEPRECATION WARNING: Rendering actions with '.' in the name is deprecated (#5560)

fixes the warning: Rendering actions with '.' in the name is deprecated

app/views/api/v1/accounts/articles/_article.json.jbuilder

@@ -15,7 +15,7 @@ end
 
 if article.portal.present?
   json.portal do
-    json.partial! 'api/v1/accounts/portals/portal.json.jbuilder', portal: article.portal
+    json.partial! 'api/v1/accounts/portals/portal', formats: [:json], portal: article.portal
   end
 end
 
@@ -23,14 +23,14 @@ json.views article.views
 
 if article.author.present?
   json.author do
-    json.partial! 'api/v1/models/agent.json.jbuilder', resource: article.author
+    json.partial! 'api/v1/models/agent', formats: [:json], resource: article.author
   end
 end
 
 json.associated_articles do
   if article.associated_articles.any?
     json.array! article.associated_articles.each do |associated_article|
-      json.partial! 'api/v1/accounts/articles/associated_article.json.jbuilder', article: associated_article
+      json.partial! 'api/v1/accounts/articles/associated_article', formats: [:json], article: associated_article
     end
   end
 end

app/views/api/v1/accounts/articles/_associated_article.json.jbuilder

@@ -8,7 +8,7 @@ json.account_id article.account_id
 
 if article.portal.present?
   json.portal do
-    json.partial! 'api/v1/accounts/portals/portal.json.jbuilder', portal: article.portal
+    json.partial! 'api/v1/accounts/portals/portal', formats: [:json], portal: article.portal
   end
 end
 
@@ -16,6 +16,6 @@ json.views article.views
 
 if article.author.present?
   json.author do
-    json.partial! 'api/v1/models/agent.json.jbuilder', resource: article.author
+    json.partial! 'api/v1/models/agent', formats: [:json], resource: article.author
   end
 end