res_pjsip/location: Fix ref leak in contact_apply_handler

contact_apply_handler calls ast_res_pjsip_find_or_create_contact_status
to force the creation of a contact_status object whenever a new
contact is added but it didn't unref the returned object.

Added an ao2_cleanup(status) to plug the leak.

ASTERISK-25141

Change-Id: Icc1401cae142855a1abc86ab5179dfb3ee861c40
Reported-by: Corey Farrell

res/res_pjsip/location.c

@@ -889,6 +889,7 @@ static int contact_apply_handler(const struct ast_sorcery *sorcery, void *object
 	struct ast_sip_contact *contact = object;
 
 	status = ast_res_pjsip_find_or_create_contact_status(contact);
+	ao2_cleanup(status);
 
 	return status ? 0 : -1;
 }