How to exclude a Configuration only replica on a Two synchronous replicas and a configuration only replica AG deployment (338423)

Customer is getting the following alarm: Availability Group - Failover Availability Message: Failover must be done manually

The customer has a SQL Server availability group in the Linux OS and they are following the "Two synchronous replicas and a configuration only replica" as described in the SQL Server documentation:

https://docs.microsoft.com/en-us/sql/linux/sql-server-linux-availability-group-ha?view=sql-server-ver15

Because of that the configuration only replica, it is not a node in which the customer can failover to and because of that Spotlight does not recognize it and gave us the "must manually failover" error message.