Can' t install some custom nodes with the manager

### Custom Node Testing

- [ ] I have tried disabling custom nodes and the issue persists (see [how to disable custom nodes](https://docs.comfy.org/troubleshooting/custom-node-issues#step-1%3A-test-with-all-custom-nodes-disabled) if you need help)

### Expected Behavior

A successful installation was expected.
Some custom nodes installed with manager without problem, for example :
ComfyUI-GGUF
comfyui-kjnodes
comfyui-videohelpersuite

### Actual Behavior

I can't install some custom nodes using the manager, for example https://github.com/Lightricks/ComfyUI-LTXVideo or https://github.com/evanspearman/ComfyMath.
I get an error during installation:
`Download: git clone 'https://github.com/evanspearman/ComfyMath'
[!] Traceback (most recent call last):
[!] File "C:\ComfyLocal\venv\Lib\site-packages\comfyui_manager\common\git_helper.py", line 12, in
[!] from comfyui_manager.common.timestamp_utils import get_backup_branch_name
[!] File "C:\ComfyLocal\venv\Lib\site-packages\comfyui_manager\__init__.py", line 6, in
[!] from comfy.cli_args import args
[!] ModuleNotFoundError: No module named 'comfy'
[ComfyUI-Manager] Installation failed:
Failed to clone repo: https://github.com/evanspearman/ComfyMath
Using Python 3.12.10 environment at: venv`
I checked it both with and without Legacy.
Manual installation works without problems.
Meanwhile, other custom nodes install without problems using the manager.

### Steps to Reproduce

clean install ComfyUI with Python 3.12 on Windows 11. Install manager. Run installation of custom node.

### Debug Logs

```powershell
Download: git clone 'https://github.com/evanspearman/ComfyMath'
[!] Traceback (most recent call last):
[!] File "C:\ComfyLocal\venv\Lib\site-packages\comfyui_manager\common\git_helper.py", line 12, in
[!] from comfyui_manager.common.timestamp_utils import get_backup_branch_name
[!] File "C:\ComfyLocal\venv\Lib\site-packages\comfyui_manager\__init__.py", line 6, in
[!] from comfy.cli_args import args
[!] ModuleNotFoundError: No module named 'comfy'
[ComfyUI-Manager] Installation failed:
Failed to clone repo: https://github.com/evanspearman/ComfyMath
Using Python 3.12.10 environment at: venv
```

### Other

_No response_