Rollup merge of #126448 - DianQK:tidy-python, r=onur-ozkan

End support for Python 3.8 in tidy

Python 3.8 will reach its end of support in October 2024. You can find more details [here](https://devguide.python.org/versions/).

### NixOS

NixOS has already discontinued provide Python 3.8. For more information, visit their [package search page](https://search.nixos.org/packages?channel=24.05&from=0&size=50&sort=relevance&type=packages&query=python38).

### Debian

- **Debian 11 (Bullseye)**: The default Python version is 3.9. More information is available [here](https://packages.debian.org/bullseye/python3).
- **Debian 10 (Buster) (EOL 2024-10)**: The default Python version is 3.7. Details can be found [here](https://packages.debian.org/buster/python3).

### Ubuntu

- **Ubuntu 20.04 'Focal Fossa' (LTS)**: The default Python version is 3.8.2. However, Python 3.9 is also available. You can find more information on these packages [here](https://packages.ubuntu.com/focal/python3) and [here](https://packages.ubuntu.com/focal/python3.9).
- **Ubuntu 22.04 'Jammy Jellyfish' (LTS)**: The default Python version is 3.10.6. More details can be found [here](https://packages.ubuntu.com/jammy/python3).

Author: matthiaskrgr