Support changing output type when running test (suites) via Testkube CLI

[frederikb]

Describe the enhancement you'd like to see
As discussed in Slack.

There is currently no way to get only the execution id as the output of testkube run test and testkube run testsuite in order to process it easily programmatically. The only solution is to parse the pretty output, which is a bit brittle.

I would like to be able to use the --output and --go-template as already availale for testkube get execution.

Additional context
Excerpt from help text for testkube get execution.

      --go-template string   go template to render (default "{{.}}")
  -o, --output string        output type can be one of json|yaml|pretty|go-template (default "pretty")

[vsukhin]

thank you @frederikb definitely a tech debt

[frederikb]

Thanks, @vsukhin !

[vsukhin]

welcome. will release it in next few days