`func new` hangs - improve logging

### Version

func --version
4.0.6280

### Description

cli `func` hangs when creating a new python function following the official guide

### Steps to reproduce

Follow instruction here: https://learn.microsoft.com/en-us/azure/azure-functions/create-first-function-cli-python?tabs=linux%2Cbash%2Cazure-cli%2Cbrowser

```bash
python -m venv .venv
source .venv/bin/activate
func init --python
func new --name HttpExample --template "HTTP trigger" --authlevel "anonymous"
```

Nothing happens after `func new`, hangs for a long time (at least 5~10 minutes) and finally prints:

`One or more errors occurred. (A task was canceled.)`

That's all, nothing to help debugging

Reproduce the hang with the documented virtual-environment and `func init`/`func new` commands, then inspect how the CLI reports the final task-cancellation error. Improve the diagnostic output so users have useful context about the failure, and verify the command no longer ends with only the generic cancellation message.

Written by the indexing model from the issue text.