fix(generate-config): print path to configuration file

[rkpattnaik780]

rhoas generate-config should now print the file to which the configurations have been saved to. This had been one of the PM feedback for the generate-config command.

Verification Steps

1. Run the following command to save configurations in config.json

./rhoas generate-config --type json --output-file "config.json"

2. It should log the following message:

✔️  Configurations successfully saved to "config.json"

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation change
• Other (please specify)