Always setting the ABI tag to <python tag>m is incorrect

[ender-wieczorek]

We always set the ABI tag to m:

conda-press/conda_press/condatools.xsh

Line 572 in dbba94c

atag = self.python_tag + 'm'

This doesn't seem correct.

The default installation of conda:

$ wget --quiet \
>     https://repo.anaconda.com/miniconda/Miniconda3-py38_4.10.3-Linux-x86_64.sh \
>     --output-document Miniconda.sh && \
>     bash Miniconda.sh -b -p ~/miniconda && \
>     rm Miniconda.sh
$ source ~/miniconda/bin/activate

has a Python version with cpython-38-x86_64-linux-gnu ABI:

$ python
>>> import sysconfig
>>> sysconfig.get_config_var('SOABI')
'cpython-38-x86_64-linux-gnu'

All the packages also have that ABI:

$ cd ~/miniconda/lib/python3.8/
$ find . -name *.so
./site-packages/ruamel_yaml/ext/_ruamel_yaml.cpython-38-x86_64-linux-gnu.so
...

So we're putting *.so built for cpython-38 in a wheel which states it's compatible with cp38m.

[YaroslavKormushyn]

There's a PR for this #55 which has been sitting there for quite some time (the original builds are not even online anymore in Azure DevOps).
I'm fairly new to python and conda, so I don't really know how to fix the failing tests in that PR, but you're welcome to contribute! I'm sure it will fix your problem.