Support Installation on Ubuntu 25.10 (Question Quokka)

### Preconditions

- [x] No need to upgrade Python SDK or the Python SDK is ready.

### Description

Following the [official installation instructions](https://learn.microsoft.com/en-us/cli/azure/install-azure-cli-linux?view=azure-cli-latest&source=recommendations&pivots=apt#option-2-step-by-step-installation-instructions) fails on Ubuntu 25.10. Specifically, the step `sudo apt update` fails with:

> Ign:7 https://packages.microsoft.com/repos/azure-cli questing InRelease
Err:8 https://packages.microsoft.com/repos/azure-cli questing Release
404 Not Found [IP: 13.107.213.42 443]
Error: The repository 'https://packages.microsoft.com/repos/azure-cli questing Release' does not have a Release file.
Notice: Updating from such a repository can't be done securely, and is therefore disabled by default.

It does work if I manually change the release version to `Noble` (Ubuntu 24.04), by running the following command:

> echo "Types: deb
URIs: https://packages.microsoft.com/repos/azure-cli/
Suites: noble
Components: main
Architectures: $(dpkg --print-architecture)
Signed-by: /etc/apt/keyrings/microsoft.gpg" | sudo tee /etc/apt/sources.list.d/azure-cli.sources

But: my system is `Questing`, so I should not be forced to install the CLI for an older version, and _hope_ that everything is compatible.

### Additional context

Support for the next release (26.04, `Resolute Raccoon`) was already requested here: https://github.com/Azure/azure-cli/issues/33282