Cubed blockwise (#357)

* Initial minimal working Cubed example for "blockwise"

* Update minimum cubed version that includes cubed-dev/cubed#448

* Fix mypy errors

* Update documentation with a 'blockwise' example for Cubed

import `normalize_axis_index` from `numpy.lib` on `numpy>=2` (#364)

* import `normalize_axis_index` from `numpy.lib` on `numpy>=2`

* import the right thing

`method` heuristics: Avoid dot product as much as possible (#347)

* Another `method` detection optimization

* fix

* silence warnings

* silence one more warning

* Even better shortcut

* Update docs

Fix nanlen with strings (#344)

* Fix nanlen with strings

Closes pydata/xarray#8853

* fix windows

* Silence warnings

Fix direct quantile reduction (#343)

Fix direct reductions of Xarray objects (#339)

* Fix direct reductions of Xarray objects

Closes pydata/xarray#8819

* Fix doctest

Test with py3.12 (#336)

Support multiple quantiles with xarray (#332)

* Support multiple quantiles with xarray

* Fix test

* type: ignore

* Bug fix

* Another bug fix

* Fix typing

* Bugfix and cleanup

* fix typing

* Another bug fix

* More xarray testing

* comment

* xfail test

Add docs on `method=None` heuristics (#328)

* Update docs for `method=None` and spatial cohorts grouping.

Closes #325

* Add docs on heuristics

* tweaks

Update dependencies (#323)