Automatic migration of multiple adapter for the same protocol fails

[DC2-DanielKrueger]

Expected behavior

Automatic Migration of the config should work regardless of the amount of adapters

Actual behavior

As soon as two or more adapters with the same protocol are in the config, the automatic migration fails with a ClassCastException.

To Reproduce

Have an older config with multiple adapters for the same protocol and start edge

[DC2-DanielKrueger]

Unfortunately there is no real workaround besides removing all adapters but one, then migrate it by starting HiveMQ Edge, extract the migrated adapter config and repeat the process with the other legacy configs.