FetchContent: missing git password prompt

### Brief Issue Summary

When configuring a project using the CMake tools extension and CMakePresets there is no password prompt for git repositories cloned by FetchContent.
When running the same cmake presets from the terminal directly, there is a prompt which asks for the password for the private repository.

Since the CMake tools extension just uses the "output" window there will probably be no way to get this working, right?

Best regards, Manuel

### CMake Tools Diagnostics

_No response_

### Debug Log

_No response_

### Additional Information

_No response_

The issue names no files, tests, or entry points. Start by reproducing the CMake Tools extension and terminal behavior with a CMake preset whose FetchContent repository requires a password, then trace how configuration output and input are handled. Done means the extension supports the required authentication interaction or clearly documents the confirmed limitation.

Written by the indexing model from the issue text.