Support tox >= 4.0.0

### Description

argcomplete 2.0.0 depends on `importlib-metadata (>=0.23,<5)` which conflicts with tox's dependency importlib-metadata (>=5.1)

### Possible Solution

Wait for the new release of argcomplete. In their develop branch, this has been relaxed.

### Additional context

_No response_

### Additional context

_No response_