Determine why tests are failing on PyPy

[chrisrink10]

After switching to PyTest 7.0 (documented in #660) the test suite in PyPy has been failing consistently:

Autodetected filename timings.
No timing found for "tests/basilisp/cli_test.py"
No timing found for "tests/basilisp/list_test.py"
No timing found for "tests/basilisp/prompt_test.py"
No timing found for "tests/basilisp/stacktrace_test.lpy"
No timing found for "tests/basilisp/test_edn.lpy"
No timing found for "tests/basilisp/test_string.lpy"
Test files:
tests/basilisp/core_test.py
tests/basilisp/namespace_test.py
tests/basilisp/runtime_test.py
tests/basilisp/test_protocols.lpy
tests/basilisp/var_test.py
tests/basilisp/set_test.py
tests/basilisp/stacktrace_test.lpy
tests/basilisp/symbol_test.py
tests/basilisp/atom_test.py

.pkg: _optional_hooks> python /opt/pypy/lib/pypy3.10/site-packages/pyproject_api/_backend.py True poetry.core.masonry.api
.pkg: get_requires_for_build_sdist> python /opt/pypy/lib/pypy3.10/site-packages/pyproject_api/_backend.py True poetry.core.masonry.api
.pkg: get_requires_for_build_wheel> python /opt/pypy/lib/pypy3.10/site-packages/pyproject_api/_backend.py True poetry.core.masonry.api
.pkg: freeze> python -m pip freeze --all
.pkg: cffi==1.15.1,greenlet==0.4.13,hpy==0.0.4,pip==23.3.1,poetry-core==1.8.1,readline==6.2.4.1,setuptools==69.0.2,wheel==0.42.0
.pkg: prepare_metadata_for_build_wheel> python /opt/pypy/lib/pypy3.10/site-packages/pyproject_api/_backend.py True poetry.core.masonry.api
.pkg: build_sdist> python /opt/pypy/lib/pypy3.10/site-packages/pyproject_api/_backend.py True poetry.core.masonry.api
pypy3: install_package> python -I -m pip install --force-reinstall --no-deps /root/project/.tox/.tmp/package/2/basilisp-0.1.0a2.tar.gz
pypy3: freeze> python -m pip freeze --all
pypy3: attrs==23.1.0,basilisp @ file:///root/project/.tox/.tmp/package/2/basilisp-0.1.0a2.tar.gz#sha256=aa6a8291c18acb4e4a1c781b7779f92c1130c85b162fe38605225f0ee9eff929,cffi==1.15.1,coverage==7.3.4,exceptiongroup==1.2.0,greenlet==0.4.13,hpy==0.0.4,immutables==0.20,iniconfig==2.0.0,packaging==23.2,pip==23.3.1,pluggy==1.3.0,prompt-toolkit==3.0.43,Pygments==2.17.2,pyrsistent==0.18.1,pytest==7.4.3,python-dateutil==2.8.2,readerwriterlock==1.0.9,readline==6.2.4.1,setuptools==69.0.2,six==1.16.0,tomli==2.0.1,typing_extensions==4.9.0,wcwidth==0.2.12,wheel==0.42.0
pypy3: commands[0]> coverage run --source=/root/project/.tox/pypy3/lib/pypy3.10/site-packages/basilisp --parallel-mode -m pytest --import-mode=importlib --junitxml=/root/project/junit/pytest/pypy3.xml tests/basilisp/core_test.py tests/basilisp/namespace_test.py tests/basilisp/runtime_test.py tests/basilisp/test_protocols.lpy tests/basilisp/var_test.py tests/basilisp/set_test.py tests/basilisp/stacktrace_test.lpy tests/basilisp/symbol_test.py tests/basilisp/atom_test.py
============================= test session starts ==============================
platform linux -- Python 3.10.13[pypy-7.3.13-final], pytest-7.4.3, pluggy-1.3.0
cachedir: .tox/pypy3/.pytest_cache
rootdir: /root/project
configfile: pyproject.toml
plugins: basilisp-0.1.0a2
collected 0 items                                                              

=============================== warnings summary ===============================
.tox/pypy3/lib/pypy3.10/site-packages/_pytest/nodes.py:649
  /root/project/.tox/pypy3/lib/pypy3.10/site-packages/_pytest/nodes.py:649: PytestRemovedIn8Warning: The (fspath: py.path.local) argument to BasilispFile is deprecated. Please use the (path: pathlib.Path) argument instead.
  See https://docs.pytest.org/en/latest/deprecations.html#fspath-argument-for-node-constructors-replaced-with-pathlib-path
    return super().from_parent(parent=parent, fspath=fspath, path=path, **kw)

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
----------- generated xml file: /root/project/junit/pytest/pypy3.xml -----------
============================== 1 warning in 0.08s ==============================
ERROR: found no collectors for /root/project/tests/basilisp/stacktrace_test.lpy

pypy3: exit 4 (272.04 seconds) /root/project> coverage run --source=/root/project/.tox/pypy3/lib/pypy3.10/site-packages/basilisp --parallel-mode -m pytest --import-mode=importlib --junitxml=/root/project/junit/pytest/pypy3.xml tests/basilisp/core_test.py tests/basilisp/namespace_test.py tests/basilisp/runtime_test.py tests/basilisp/test_protocols.lpy tests/basilisp/var_test.py tests/basilisp/set_test.py tests/basilisp/stacktrace_test.lpy tests/basilisp/symbol_test.py tests/basilisp/atom_test.py pid=746
.pkg: _exit> python /opt/pypy/lib/pypy3.10/site-packages/pyproject_api/_backend.py True poetry.core.masonry.api
  pypy3: FAIL code 4 (281.33=setup[9.29]+cmd[272.04] seconds)
  evaluation failed :( (282.17 seconds)

Exited with code exit status 4```