Improve test command coverage for networking use cases

[noaabarki]

Describe the solution you'd like
Add tests for networking failures flows in test command datree test <path>

Basic use cases to cover:

Failed to create evaluation

• should create evaluation → meaning to call CreateEvaluation
• should not request evaluation → meaning not to call Evaluate
• should print mocked errors.

Failed to request evaluation

• should create evaluation → meaning to call CreateEvaluation
• should request evaluation → meaning to call Evaluate with returned evaluationID
• should print mocked errors.

Requirements
Golang basic level.

[Kanika637]

I would like to work on this @noaabarki

[noaabarki]

@Kanika637, it's yours 💪🏻

[adifayer]

@Kanika637 Are you still working on this issue, or can we reassign it?😊

[Kanika637]

Hey @adifay, actually I could not get hold of the issue. You can reassign it, sorry for the inconvenience.

[KiranSatyaRaj]

Hey @noaabarki, can you send me the slack invitation, I need to troubleshoot some issues I have while installing datree, and also to discuss this GitHub issue, I want to take it up.