Changes to Get an agent

the response property schema became optional for the status 200

the schema response's property type changed from object to no type for status 200

removed the required property schema/input from the response with the 200 status

removed the required property schema/output from the response with the 200 status

added the optional property validation to the response with the 200 status

added AgentSchema subschema #2 to the schema response property anyOf list for the response status 200

the endpoint scheme security BearerAuth was added to the API