pipeline: remove broken coveralls (log below, `pytest --cov-fail-under=100 …` in place)

> Run coveralls report
> …
>   v0.6.12
>
> 🔍 Detected coverage file: .coverage
> 🚨 Nothing to report
> Error: Process completed with exit code 1.

.github/workflows/python.yml

@@ -62,7 +62,6 @@ jobs:
     # https://github.com/PyCQA/pylint/issues/352
     - run: pipenv run pylint tests/*
     - run: pipenv run mypy "$(cat *.egg-info/top_level.txt)" tests
-    - uses: coverallsapp/github-action@v2
   check-links:
     runs-on: ubuntu-20.04
     strategy:

README.md

@@ -2,7 +2,7 @@
 
 [![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)
 [![CI Pipeline Status](https://github.com/fphammerle/python-cc1101/workflows/tests/badge.svg)](https://github.com/fphammerle/python-cc1101/actions)
-[![Coverage Status](https://coveralls.io/repos/github/fphammerle/python-cc1101/badge.svg?branch=master)](https://coveralls.io/github/fphammerle/python-cc1101?branch=master)
+![Coverage Status](https://ipfs.io/ipfs/QmP8k5H4MkfspFxQxdL2kEZ4QQWQjF8xwPYD35KvNH4CA6/20230429T090002+0200/s3.amazonaws.com/assets.coveralls.io/badges/coveralls_100.svg)
 [![Last Release](https://img.shields.io/pypi/v/cc1101.svg)](https://pypi.org/project/cc1101/#history)
 [![Compatible Python Versions](https://img.shields.io/pypi/pyversions/cc1101.svg)](https://pypi.org/project/cc1101/)
 [![DOI](https://zenodo.org/badge/292333844.svg)](https://zenodo.org/badge/latestdoi/292333844)