Support Zarr-Python 3

[maxrjones]

Adds support for both opening Zarr stores using either Zarr-Python 2 or Zarr-Python 3.

Fixed #1068

[maxrjones]

This is the bulk of the changes to account for Zarr no longer accepting fsspec's mutable mapping wrappers and expecting asynchronous file systems.

[abarciauskas-bgse]

will this work for zarr<3 ? Should that be specified?

[maxrjones]

Yes, I accounted for both the new and old syntax in

titiler/src/titiler/xarray/titiler/xarray/io.py

Lines 81 to 89 in e081d0f

	if module_available("zarr", minversion="3.0"):
	if protocol == "file":
	store = zarr.storage.LocalStore(parsed.path, read_only=True)
	else:
	fs = fsspec.filesystem(protocol, storage_options={"asynchronous": True})
	store = zarr.storage.FsspecStore(fs, path=src_path, read_only=True)
	else:
	store = fsspec.filesystem(protocol).get_mapper(src_path)

and tested locally for zarr<3.