Command does not work

### Describe the bug

I tried to install azure-devops extension usin AZ CLI, but got an error that "file not found".

- I tried to do that with Python outside of Azure CLI and succeeded.
- I tried to do that with embeded Azure CLI Python and got an error:

C:\Program Files\Microsoft SDKs\Azure\CLI2\Scripts>pip install azure-devops
Fatal error in launcher: Unable to create process using '"D:\a\_work\1\s\build_scripts\windows\artifacts\Python\python.exe" "C:\Program Files\Microsoft SDKs\Azure\CLI2\Scripts\pip.exe" install azure-devops': The system cannot find the file specified.

It seems that this is packaging error.

### Related command

C:\Program Files\Microsoft SDKs\Azure\CLI2\Scripts>pip install azure-devops

**Important**: this is INTERNAL AZ CLI command, not external Python.

### Errors

Fatal error in launcher: Unable to create process using '"D:\a\_work\1\s\build_scripts\windows\artifacts\Python\python.exe" "C:\Program Files\Microsoft SDKs\Azure\CLI2\Scripts\pip.exe" install azure-devops': The system cannot find the file specified.

### Issue script & Debug output

C:\Program Files\Microsoft SDKs\Azure\CLI2\Scripts>pip install azure-devops

Fatal error in launcher: Unable to create process using '"D:\a\_work\1\s\build_scripts\windows\artifacts\Python\python.exe" "C:\Program Files\Microsoft SDKs\Azure\CLI2\Scripts\pip.exe" install azure-devops': The system cannot find the file specified.

### Expected behavior

No error..

### Environment Summary

az version
{
"azure-cli": "2.76.0",
"azure-cli-core": "2.76.0",
"azure-cli-telemetry": "1.1.0",
"extensions": {}
}

### Additional context

_No response_

Start by reproducing the Windows command `pip install azure-devops` from the embedded Azure CLI Scripts directory and inspect how the packaged pip launcher is created. Trace the hard-coded build-time Python path shown in the error; done means the internal command launches successfully and installs the extension dependency without a file-not-found error.

Written by the indexing model from the issue text.