Adapt to new Zarr version

[meggart]

No description provided.

[codecov-io]

Codecov Report

Merging #245 (2ac2ce4) into master (db6cf6f) will increase coverage by 1.84%.
The diff coverage is 66.66%.

@@            Coverage Diff             @@
##           master     #245      +/-   ##
==========================================
+ Coverage   38.07%   39.91%   +1.84%     
==========================================
  Files          12       12              
  Lines         415      471      +56     
==========================================
+ Hits          158      188      +30     
- Misses        257      283      +26     

Impacted Files	Coverage Δ
src/ESDL.jl	100.00% <ø> (ø)
src/remap.jl	76.59% <ø> (+2.23%)	⬆️
src/esdc.jl	83.33% <66.66%> (-5.56%)	⬇️
src/Proc.jl	100.00% <0.00%> (ø)
src/Shapes.jl	0.00% <0.00%> (ø)
src/cubeinfo.jl	0.00% <0.00%> (ø)
src/ESDLTools.jl	0.00% <0.00%> (ø)
src/countrydict.jl	100.00% <0.00%> (ø)
src/extractlonlats.jl	100.00% <0.00%> (ø)
... and 5 more

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