ALE mistakenly thinks `$HOME` is the project root for Python code

## Information

VIM - Vi IMproved 9.0 (2022 Jun 28, compiled Sep 12 2023 09:31:27)
macOS version - arm64

## What went wrong

ALE mistakenly thinks `$HOME` is the project root for Python code.

Specifically, ALE tries to figure out the Python project root using `ale#python#FindProjectRootIni` which looks for a set of cue files (but not `setup.py`)

Because there is often a global `.pylintrc` in `$HOME` as in my case, ALE thinks that is the project root and a bunch of tools stop working correctly with this.

There is of course a possibility that `$HOME` *is* the project root, but it cannot be deduced by the fact that there exists a global configuration file for pylint.

I suggest stopping the Upwards at `$HOME` or something.

## Reproducing the bug

Create a global pylintrc or one of the other dozen files listed in the function, have an oldstyle setup.py.

### :ALEInfo
N/A