Update process_config setting per Agent v7 deprecation notice

[jeffbyrnes]

Per the current (as of this writing) v7 version of Datadog Agent:

process_config.enabled is deprecated, use process_config.container_collection.enabled and process_config.process_collection.enabled instead, see https://docs.datadoghq.com/infrastructure/process#installation for more information

[jcwarp]

I have run into this issue too.
Is there any work-around, or do we have to take over the management of /etc/datadog-agent/datadog.yaml from the broken module like we did for the solr.d/conf.yaml?