handle zarr upstream changes

[ianhi]

rectilinear chunks + changed add_array signature

[ianhi]

of course this makes the v1 version of compat fail

[4](https://github.com/earth-mover/icechunk/actions/runs/24407892781/job/71297384149?pr=2076#step:6:3445)

Falsifying example:
state = CrossVersionTwoActorZarrHierarchyStateMachine()
Draw 1: 'v1'
Creating repository with spec_version=1, actor=<class 'icechunk_v1.repository.Repository'>
state.init_store(spec_version=1, data=data(...))
state.check_list_dir()
state.check_list_prefix_from_root()
Checking 1 expected keys vs 1 actual keys
Draw 2: bool(False)
Adding array:  path='0'  shape=(0,)  chunks=(0,)
Draw 3 (dimension names): None
state.add_array(array_and_chunks=(array([], dtype=bool), (0,)), data=data(...), name='0')
state.teardown()
Explanation:
    These lines were always and only run by failing examples:
        /home/runner/work/icechunk/icechunk/icechunk-python/.venv/lib/python3.12/site-packages/zarr/core/sync.py:120
        /home/runner/work/icechunk/icechunk/icechunk-python/.venv/lib/python3.12/site-packages/zarr/core/sync.py:159
        /usr/lib/python3.12/asyncio/tasks.py:788
        /usr/lib/python3.12/asyncio/tasks.py:789

You can reproduce this example by temporarily adding @reproduce_failure('6.151.9', b'AABBAQBBAEETAEEAQQEBQQAAQQCBMABBAA==') as a decorator on your test case

[dcherian]

we can update the compat one specifically?

[ianhi]

hmm upstream zarr is also changing configs by default:

https://github.com/zarr-developers/zarr-python/blob/0ea15fd7a2d898ffa445aeacbba9ad64707c9117/tests/test_store/test_stateful.py#L21-L25

  @pytest.fixture(autouse=True)
  def _enable_rectilinear_chunks() -> Generator[None, None, None]:
      with zarr.config.set({"array.rectilinear_chunks": True}):
          yield

[ianhi]

I think that: zarr-developers/zarr-python#3909 (comment)

will help a lot