fix: patch changed behavior of setproperty! for modules

[MilesCranmer]

This fixes the breaking change introduced by Julia 1.11: JuliaLang/julia#54678. Fixes #582. See JuliaLang/julia#56933 for more discussion.

The fix is pretty simple - we just automatically call global on variables that are undefined. This means that the syntax

from juliacall import Main as jl

jl.x = 1

will continue to function.

@cjdoris could you please take a look and merge? Since Julia 1.11 is out now I think we should get this fix in relatively quickly since a lot of the docs and tutorials rely on this behavior working.

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Edit: also fixed some of the other tests (see discussion below)

[MilesCranmer]

Unrelated but this is a real unbound_args. V is unbound in Tuple{Vararg{V}} because () is technically a subtype - in which case V has no definition.

Correct signature with bounded V would be Tuple{V,Vararg{V}}

[MilesCranmer]

FYI I'm ignoring some of the broken tests (only two; seem minor) temporarily since I see the setproperty! issue as being much more impactful

[MilesCranmer]

The only remaining test error is from the julia_gc test. I think it's more likely this is due to Julia bugs since 1.11's parallel GC has some internal issues (e.g., JuliaLang/julia#56871, JuliaLang/julia#56759, JuliaLang/julia#56735).

I'll turn off that test for 1.11 too, since it doesn't identify an issue with PythonCall.jl (if that's alright with you). We can look into it later once 1.11.3 comes out.