flake8-slots does not seem to work with flake8 5

[nth10sd]

Description

Test running flake8-slots 0.1.5 with flake8 5.0.4.

Actual result:

$ flake8 .
There was a critical error during execution of Flake8:
plugin code for `flake8-slots[SLOT]` does not match ^[A-Z]{1,3}[0-9]{0,3}$

Expected result:

flake8 runs successfully

Reproduces how often:

Easily reproduced

Version

• Operating System: Ubuntu 22.04.1
• Python: 3.10
• flake8-slots: 0.1.5

Installation source

PyPI

Other Additional Information:

This is the corresponding fix for another flake8 plugin.