Remove Python 3.7 .. 3.8 from project classifiers

[USSX-Hares]

In pypropject.toml, the minimal Python version is set to 3.9.
However, classifiers are:

    "Programming Language :: Python :: 3",
    "Programming Language :: Python :: 3.7",
    "Programming Language :: Python :: 3.8",
    "Programming Language :: Python :: 3.9",
    "Programming Language :: Python :: 3.10",
    "Programming Language :: Python :: 3.11",

This is inconsistent

[scanny]

Ah, good call, I'll get that fixed up. Thanks @USSX-Hares