fix: Disable automations on auto-reply emails (#12101)

The term "sorcerer’s apprentice mode" is defined as a bug in a protocol
where, under some circumstances, the receipt of a message causes
multiple messages to be sent, each of which, when received, triggers the
same bug. - RFC3834

Reference: https://github.com/chatwoot/chatwoot/pull/9606

This PR:
- Adds an auto_reply attribute to message.
- Adds an auto_reply attribute to conversation. 
- Disable conversation_created / conversation_opened event if auto_reply
is set.
- Disable message_created event if auto_reply is set.

---------

Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>

app/mailboxes/imap/imap_mailbox.rb

@@ -84,6 +84,7 @@ class Imap::ImapMailbox
         additional_attributes: {
           source: 'email',
           in_reply_to: in_reply_to,
+          auto_reply: @processed_mail.auto_reply?,
           mail_subject: @processed_mail.subject,
           initiated_at: {
             timestamp: Time.now.utc

app/mailboxes/incoming_email_validity_helper.rb

@@ -8,13 +8,6 @@ module IncomingEmailValidityHelper
     # This can happen in cases like bounce emails for invalid contact email address
     return false unless Devise.email_regexp.match?(@processed_mail.original_sender)
 
-    # Process bounced emails, as regular emails
-    return true if @processed_mail.bounced?
-
-    # we skip processing auto reply emails like delivery status notifications
-    # out of office replies, etc.
-    return false if auto_reply_email?
-
     true
   end
 
@@ -24,13 +17,4 @@ module IncomingEmailValidityHelper
 
     true
   end
-
-  def auto_reply_email?
-    if @processed_mail.auto_reply?
-      Rails.logger.info "is_auto_reply? : #{processed_mail.auto_reply?}"
-      true
-    else
-      false
-    end
-  end
 end

app/mailboxes/support_mailbox.rb

@@ -70,6 +70,7 @@ class SupportMailbox < ApplicationMailbox
                                                                                  additional_attributes: {
                                                                                    in_reply_to: in_reply_to,
                                                                                    source: 'email',
+                                                                                   auto_reply: @processed_mail.auto_reply?,
                                                                                    mail_subject: @processed_mail.subject,
                                                                                    initiated_at: {
                                                                                      timestamp: Time.now.utc