fix: ensure contact_inbox if contact exists(#5667)

- Fixing Instagram issue for existing contacts in the inbox

app/jobs/webhooks/instagram_events_job.rb

@@ -13,6 +13,7 @@ class Webhooks::InstagramEventsJob < ApplicationJob
     @entries = entries
 
     @entries.each do |entry|
+      entry = entry.with_indifferent_access
       entry[:messaging].each do |messaging|
         send(@event_name, messaging) if event_name(messaging)
       end

app/services/instagram/message_text.rb

@@ -53,8 +53,10 @@ class Instagram::MessageText < Instagram::WebhooksBaseService
     @messaging[:message][:is_deleted].present?
   end
 
+  # if contact was present before find out contact_inbox to create message
   def contacts_first_message?(ig_scope_id)
-    @inbox.contact_inboxes.where(source_id: ig_scope_id).empty? && @inbox.channel.instagram_id.present?
+    @contact_inbox = @inbox.contact_inboxes.where(source_id: ig_scope_id).last
+    @contact_inbox.blank? && @inbox.channel.instagram_id.present?
   end
 
   def sent_via_test_webhook?