GitHub-Action-for-pytest fails (outdated)

[fhemberger]

cclauss/GitHub-Action-for-pytest@0.5.0 is still based on Python 3.7, hasn't been updated in five years and a two year old PR of mine to use Dependabot to update its build depencencies hasn't been looked at.

Updating our base image to Python 3.11.5-alpine throws the following error:

Collecting PyYAML==5.4.1 (from -r requirements-frozen.txt (line 3))
  Downloading PyYAML-5.4.1.tar.gz ([17](https://github.com/fhemberger/mqtt_exporter/actions/runs/6045139442/job/16404731144?pr=68#step:4:18)5 kB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 175.1/175.1 kB 17.4 MB/s eta 0:00:00
  Installing build dependencies: started
  Installing build dependencies: finished with status 'done'
  Getting requirements to build wheel: started
  Getting requirements to build wheel: finished with status 'error'
  error: subprocess-exited-with-error
  
  × Getting requirements to build wheel did not run successfully.
  │ exit code: 1
  ╰─> [62 lines of output]
      running egg_info
      writing lib3/PyYAML.egg-info/PKG-INFO
      writing dependency_links to lib3/PyYAML.egg-info/dependency_links.txt
      writing top-level names to lib3/PyYAML.egg-info/top_level.txt
      /tmp/pip-build-env-h6q4hkkl/overlay/lib/python3.7/site-packages/setuptools/config/setupcfg.py:293: _DeprecatedConfig: Deprecated config in `setup.cfg`
      !!
      
              ********************************************************************************
              The license_file parameter is deprecated, use license_files instead.
      
              By [20](https://github.com/fhemberger/mqtt_exporter/actions/runs/6045139442/job/16404731144?pr=68#step:4:21)[23](https://github.com/fhemberger/mqtt_exporter/actions/runs/6045139442/job/16404731144?pr=68#step:4:24)-Oct-[30](https://github.com/fhemberger/mqtt_exporter/actions/runs/6045139442/job/16404731144?pr=68#step:4:31), you need to update your project and remove deprecated calls
              or your builds will no longer be supported.
      
              See https://setuptools.pypa.io/en/latest/userguide/declarative_config.html for details.
              ********************************************************************************

GitHub docs recommend installing pytest as part of the workflow:
https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python#testing-your-code