fix: Remove phone_number_id param from WhatsApp media retrieval for incoming messages (#13319)

Fixes https://github.com/chatwoot/chatwoot/issues/13317
Fixes an issue where WhatsApp attachment messages (images, audio, video,
documents) were failing to download. Messages were being created but
without attachments.

The `phone_number_id` parameter was being passed to the `GET
/<MEDIA_ID>` endpoint when downloading incoming media. According to
Meta's documentation:

> "Note that `phone_number_id` is optional. If included, the request
will only be processed if the business phone number ID included in the
query matches the ID of the business
  phone number **that the media was uploaded on**."

For incoming messages, media is uploaded by the customer, not by the
business phone number. Passing the business's `phone_number_id` causes
validation to fail with error: `Param phone_number_id is not a valid
whatsapp business phone number id ID`

This PR removes the `phone_number_id` parameter from the media URL
request for incoming messages.

app/services/whatsapp/incoming_message_whatsapp_cloud_service.rb

@@ -10,10 +10,7 @@ class Whatsapp::IncomingMessageWhatsappCloudService < Whatsapp::IncomingMessageB
 
   def download_attachment_file(attachment_payload)
     url_response = HTTParty.get(
-      inbox.channel.media_url(
-        attachment_payload[:id],
-        inbox.channel.provider_config['phone_number_id']
-      ),
+      inbox.channel.media_url(attachment_payload[:id]),
       headers: inbox.channel.api_headers
     )
     # This url response will be failure if the access token has expired.

app/services/whatsapp/providers/whatsapp_cloud_service.rb

@@ -75,10 +75,8 @@ class Whatsapp::Providers::WhatsappCloudService < Whatsapp::Providers::BaseServi
     csat_template_service.get_template_status(template_name)
   end
 
-  def media_url(media_id, phone_number_id = nil)
-    url = "#{api_base_path}/v13.0/#{media_id}"
-    url += "?phone_number_id=#{phone_number_id}" if phone_number_id
-    url
+  def media_url(media_id)
+    "#{api_base_path}/v13.0/#{media_id}"
   end
 
   private