fix: Check the file attachment URL exists before downloading attachments in Telegram. (#8679)

In rare cases, the API call to Telegram for the file path fails. We were logging the error in sentry, switching to logs instead.

Co-authored-by: Sojan <sojan@pepalo.com>

app/services/telegram/incoming_message_service.rb

@@ -100,6 +100,12 @@ class Telegram::IncomingMessageService
   def attach_files
     return unless file
 
+    file_download_path = inbox.channel.get_telegram_file_path(file[:file_id])
+    if file_download_path.blank?
+      Rails.logger.info "Telegram file download path is blank for #{file[:file_id]} : inbox_id: #{inbox.id}"
+      return
+    end
+
     attachment_file = Down.download(
       inbox.channel.get_telegram_file_path(file[:file_id])
     )