flake8 5.0.4 dependency error upon pip install azdev

I am getting the following error after running `pip install azdev`:
```
ERROR: flake8 5.0.4 has requirement importlib-metadata<4.3,>=1.1.0; python_version < "3.8", but you'll have importlib-metadata 6.6.0 which is incompatible.
ERROR: flake8 5.0.4 has requirement mccabe<0.8.0,>=0.7.0, but you'll have mccabe 0.6.1 which is incompatible.
```

It finished installing afterward, so I don't know what this blocks. Since it is a tool related to style guides, I assume it would introduce issues for `azdev style`. I was able to run `azdev style` and it just had a bunch of linting errors. However, the Pylint passed.

Inizia riproducendo `pip install azdev`, quindi esegui `azdev style`, confrontando le versioni installate di flake8, importlib-metadata e mccabe con i requisiti indicati. Traccia le dichiarazioni delle dipendenze utilizzate dall'installazione e verifica che l'installazione venga completata senza requisiti incompatibili, mentre il comando di style rimane eseguibile.

Scritto dal modello di indicizzazione a partire dal testo della issue.