Support Python >= 3.12 and drop support for Python 2.x

## Feature Request

Trying to install arrow with Python 3.12.3 installed does not work, because (at a minimum) [distutils has been removed](https://docs.python.org/3/library/distutils.html#module-distutils), but is required by the package six. As Python 2.x is far beyond EOL now, perhaps it is time to support Python >= 3.12 by dropping the six package and thus dropping support for 2.x?

This is the traceback I get trying to install via poetry:
```shell
> poetry add arrow
Using version ^1.3.0 for arrow

Updating dependencies
Resolving dependencies... (0.1s)

Package operations: 4 installs, 0 updates, 0 removals

• Installing six (1.17.0): Failed

EnvCommandError

Command ['/home/hlongmore/.cache/pypoetry/virtualenvs/tagflow-c_c9oK7O-py3.12/bin/python', '-W', 'ignore', '-'] errored with the following return code 1, and output:
Traceback (most recent call last):
File "", line 7, in
ModuleNotFoundError: No module named 'distutils'
```

Start by reproducing the Poetry installation failure with Python 3.12.3 and inspect the package's dependency configuration for the six requirement. Done means the package installs on Python >=3.12 without the distutils failure and no longer claims Python 2.x support.

Written by the indexing model from the issue text.