remove compressor kwarg from create_array

[d-v-b]

In #2709 we ended up with a new keyword argument (compressor) in Group.create_array, unfortunately this creates confusion given that Group.create_array already takes a compressors kwarg, and create_array (the function Group.create_array ultimately invokes) only takes compressors.

New functions like create_array should be kept clear of confusing / redundant keyword arguments, and we should also ensure that Group.<func> has nearly the same signature as <func>, so for both these reasons I think we should hastily remove the compressor kwarg from Group.create_array, and ensure that the issue solved by #2709 can be solved via the compressors kwarg.

cc @martindurant

[martindurant]

Happy to hear opinions. Probably this was used in the current release of kerchunk.

[d-v-b]

I think we could keep the change smooth via a deprecation + warning, and then make the breaking change in a few releases?