Set-CcmDeploymentStep is not functional

### What You Are Seeing?

Code is incomplete for `Set-CcmDeploymentStep`

### What is Expected?

Similar functionality to `New-CcmDeploymentStep`

### How Did You Get This To Happen? (Steps to Reproduce)

`process` block for this command is not doing anything other than printing parameter values, so the deployment step is never being updated?

https://github.com/chocolatey/ChocoCCM/blob/2c92049ff1cbfafe4388cf4bb5105eec3083c808/src/Public/Set-CCMDeploymentStep.ps1#L177-L188

### System Details

N/A

### Output Log

N/A

Start with src/Public/Set-CCMDeploymentStep.ps1 around lines 177-188, then compare its process block with New-CcmDeploymentStep. Confirm how the analogous command performs its update. Done means Set-CcmDeploymentStep updates the deployment step instead of only printing parameter values.

Written by the indexing model from the issue text.