[FIX] mail_drop_target: new attribute name

The external dependency `extract_msg` changed how to access to the message id in [its 0.24.4 release][1].

That broke the branch. Fixing here.

[1]: https://github.com/mattgwwalker/msg-extractor/releases/tag/v0.24.4

@Tecnativa TT24457

mail_drop_target/models/mail_thread.py

@@ -81,6 +81,11 @@ class MailThread(models.AbstractModel):
                 _("Install the msg-extractor library to handle .msg files")
             )
         message_msg = Message(b64decode(message))
+        try:
+            message_id = message_msg.messageId
+        except AttributeError:
+            # Using extract_msg < 0.24.4
+            message_id = message_msg.message_id
         message_email = self.env["ir.mail_server"].build_email(
             message_msg.sender,
             message_msg.to.split(","),
@@ -89,7 +94,7 @@ class MailThread(models.AbstractModel):
             message_msg._getStream("__substg1.0_10130102") or message_msg.body,
             email_cc=message_msg.cc,
             headers={"date": message_msg.date},
-            message_id=message_msg.message_id,
+            message_id=message_id,
             attachments=[
                 (attachment.longFilename, attachment.data)
                 for attachment in message_msg.attachments