Cannot run 2 instances of "az connectedk8s proxy" on the same VM

### Describe the bug

The "az connectedk8s proxy" does not allow a client proxy to run more than one instance on a VM. We would like to be able to run multiple proxies by specifying client port number.

The following code prohibit the "az connectedk8s proxy" from running multi-instances on a VM.

The code only allows a single process running:
1. Does not allow the Client port to be set. https://github.com/Azure/azure-cli-extensions/blob/c984268f77196374baf9c058bafd957ce95ce052/src/connectedk8s/azext_connectedk8s/custom.py#L1801
2. Check for a process name only. https://github.com/Azure/azure-cli-extensions/blob/c984268f77196374baf9c058bafd957ce95ce052/src/connectedk8s/azext_connectedk8s/_clientproxyutils.py#L125

What is the process for getting an idea like this evaluated?

### Related command

None

### Errors

Another instance of proxy already running

### Issue script & Debug output

none

### Expected behavior

Allow to specify client port and run instance of proxy on different local ports against different clusters.

### Environment Summary

dschveninger@LAPTOP-GLS580EI:~/nc-scripts$ az --version
azure-cli 2.39.0 *

core 2.39.0 *
telemetry 1.0.6 *

Extensions:
connectedmachine 0.5.1
connectedk8s 1.3.13
azure-devops 0.25.0
k8s-extension 1.4.1
networkcloud 0.1.7.post234
customlocation 0.1.3
hybridaks 0.1.3

Dependencies:
msal 1.18.0b1
azure-mgmt-resource 21.1.0b1

Python location '/opt/az/bin/python3'
Extensions directory '/home/dschveninger/.azure/cliextensions'

Python (Linux) 3.10.5 (main, Jul 29 2022, 03:26:59) [GCC 9.4.0]

Legal docs and information: aka.ms/AzureCliLegal

### Additional context

_No response_