Update ZipArchives to 2.0 (#138)

I removed some functions from ZipArchives.jl in JuliaIO/ZipArchives.jl#43 that are not needed by Zarr.jl to reduce the complexity. No changes to Zarr.jl should be needed.

Author: nhz2

Project.toml

@@ -31,7 +31,7 @@ LRUCache = "1"
 OffsetArrays = "0.11, 1.0"
 OpenSSL = "1"
 URIs = "1"
-ZipArchives = "1"
+ZipArchives = "2"
 julia = "1.2"
 
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