Fix rapid7#9513, Add private_type to be able to store password for Tomcat

If there is no :private_type, the create_credential method in
Metasploit::Credential::Creation will quietly skip the password,
which makes it look like a bug when the user is trying to view
the password from the creds command.

Fix rapid7#9513

Author: wchen-r7

modules/auxiliary/scanner/http/tomcat_mgr_login.rb

@@ -120,7 +120,8 @@ def run_host(ip)
       credential_data = result.to_h
       credential_data.merge!(
           module_fullname: self.fullname,
-          workspace_id: myworkspace_id
+          workspace_id: myworkspace_id,
+          private_type: :password
       )
       if result.success?
         credential_core = create_credential(credential_data)