update the Julia code for downloading files #134
Merged
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avoid the call
JuliaImportPackage("Downloads")
, which somehow does not work as expected in certain situations, see Warning "The Julia package 'Downloads' cannot be loaded" when starting GAP.jl in CI oscar-system/GAP.jl#1040update the code of the function such that it contains the changes from use a custom
Downloads.Downloader
for installing GAP packages oscar-system/GAP.jl#961(Yes, the new code looks ugly, and the next GAP.jl version will contain support for the "call with catch and keyword arguments" situation.)