Updated test dependencies in pyproject.toml

[TomAugspurger]

(note: pending some discussion at #2068 (comment) on the desired behavior w.r.t zarr.testing.StoreTests)

• removed pytest as a required dep
• move test hatch env dep to a "test" optional dependency and include as a feature

Here's the output of hatch env run -e test.py3.10-1.24-minimal pip list

Package            Version
------------------ -----------
aiobotocore        2.13.1
aiohappyeyeballs   2.3.5
aiohttp            3.10.1
aioitertools       0.11.0
aiosignal          1.3.1
asciitree          0.3.3
async-timeout      4.0.3
attrs              24.2.0
blinker            1.8.2
boto3              1.34.131
botocore           1.34.131
certifi            2024.7.4
cffi               1.17.0
charset-normalizer 3.3.2
click              8.1.7
coverage           7.6.1
crc32c             2.5
cryptography       43.0.0
donfig             0.8.1.post1
exceptiongroup     1.2.2
fasteners          0.19
Flask              3.0.3
Flask-Cors         4.0.1
frozenlist         1.4.1
fsspec             2024.6.1
idna               3.7
iniconfig          2.0.0
itsdangerous       2.2.0
Jinja2             3.1.4
jmespath           1.0.1
lmdb               1.5.1
MarkupSafe         2.1.5
moto               5.0.12
msgpack            1.0.8
multidict          6.0.5
mypy               1.11.1
mypy-extensions    1.0.0
numcodecs          0.13.0
numpy              1.26.4
packaging          24.1
pip                24.0
pluggy             1.5.0
py-partiql-parser  0.5.5
pycparser          2.22
pytest             8.3.2
pytest-asyncio     0.23.8
pytest-cov         5.0.0
python-dateutil    2.9.0.post0
PyYAML             6.0.2
requests           2.32.3
responses          0.25.3
s3fs               2024.6.1
s3transfer         0.10.2
setuptools         69.2.0
six                1.16.0
tomli              2.0.1
typing_extensions  4.12.2
universal_pathlib  0.2.2
urllib3            2.2.2
Werkzeug           3.0.3
wheel              0.43.0
wrapt              1.16.0
xmltodict          0.13.0
yarl               1.9.4
zstandard          0.23.0

The presence of, e.g. s3fs, indicates that the hatch env stuff is picking up those deps through the test feature, while still allowing non-hatch usage through pip install -e .[test].

Closes #2068

• Add unit tests and/or doctests in docstrings
• Add docstrings and API docs for any new/modified user-facing classes and functions
• New/modified features documented in docs/tutorial.rst
• Changes documented in docs/release.rst
• GitHub Actions have all passed
• Test coverage is 100% (Codecov passes)

[d-v-b]

this looks good, thanks!

[jhamman]

@TomAugspurger - mind cleaning up the merge conflict here?

[TomAugspurger]

Done, and CI passed.