Update UMAPI credentials during credential operations #210
Description
Is your feature request related to a problem? Please describe.
The current format for connector-umapi.yml uses the key client_id where it used to be api_key. Some customers who upgrade to a new version of UST that has the automated credential management feature built in may have their config files in the older format. Right now the credential management feature only works for the newer format.
Describe the solution you'd like
If connector-umapi.yml is in the older format, running aa credential operation should update it to the new format automatically. That is, the key api_key should be replaced with client_id but maintain the same value.