Code coverage report when running all the tests

[ischwarz3]

Quick little QoL change. When running poetry run pytest also do a code coverage analysis:

╰─ poetry run pytest
=========================================================================== test session starts ===========================================================================
platform linux -- Python 3.11.1, pytest-8.1.1, pluggy-1.4.0
benchmark: 4.0.0 (defaults: timer=time.perf_counter disable_gc=False min_rounds=5 min_time=0.000005 max_time=1.0 calibration_precision=10 warmup=False warmup_iterations=100000)
rootdir: /home/isaac/repos/eqalert
configfile: pyproject.toml
plugins: benchmark-4.0.0, cov-5.0.0, mock-3.12.0
collected 5 items                                                                                                                                                         

tests/lib/test_config.py .....                                                                                                                                      [100%]/home/isaac/repos/eqalert/.venv/lib/python3.11/site-packages/coverage/report_core.py:115: CoverageWarning: Couldn't parse '/home/isaac/repos/eqalert/eqa/lib/parser.py': maximum recursion depth exceeded in comparison (couldnt-parse)
  coverage._warn(msg, slug="couldnt-parse")

---------- coverage: platform linux, python 3.11.1-final-0 -----------
Coverage HTML written to dir coverage/html
Coverage LCOV written to file coverage/coverage.lcov

============================================================================ 5 passed in 4.17s ============================================================================

I use the LCOV report for a VSCode extension - it will highlight lines as covered/uncovered. This could also be used to upload results to something like Codecov to display a coverage badge or PR messages if desired.

I also set the HTML report as a "nice to have" - you can open eqalert/coverage/html/index.html in a browser to view coverage.