- update to 2023.12.9:
* Read 32-bit Indica Labs TIFF as float32.
* Fix UnboundLocalError reading big LSM files without time
axis.
* Use os.sched_getaffinity, if available, to get the number of
CPUs (#231).
* Limit the number of default worker threads to 32.
* Lazily convert dask array to ndarray when writing.
* Allow to specify buffersize for reading and writing.
* Fix IndexError reading some corrupted files with
ZarrTiffStore (#227).
* Raise exception when writing non-volume data with volumetric
tiles (#225).
* Improve multi-threaded writing of compressed multi-page
files.
* Fix fsspec reference for big-endian files with predictors.

- Inject multibuild to fix a bootstrapping issue.
- Add _constraints file to avoid OOM
- Ignore test_write_ome, test_class_omexml_attributes,
test_class_omexml_multiimage, and test_class_omexml because it
- Fix ERROR: download_files is configured to fail when the
upstream file is different than the committed file.
- Fix spec file build condition.
* Re-add pure Python PackBits decoder.