Deploy and Test commands not using gateway-node address

[jeff1010322]

Describe the bug

The Deploy and Test commands use only the channel address flag and ignore the gateway-node address if set in the test or deploy config yaml:

gateway-node: 
  address: https://localhost:6299

To Reproduce

Run a test or deploy using any gateway-node address other than the default value and notice that it still tries to use the default channel address:

gateway-node: 
  address: https://localhost:6300