Source information of stdlibs contains buildkite info

[lgoettgens]

Consider the following JET report excerpt (from report_package(GAP) with JET 0.10.6 and julia 1.12.0-rc1.19, the issue itself is attempted to be fixed in JuliaLang/NetworkOptions.jl#43):

┌ __init__() @ GAP /home/lgoe/code/julia/GAP.jl/src/GAP.jl:283
│┌ init_packagemanager() @ GAP.Packages /home/lgoe/code/julia/GAP.jl/src/packages.jl:37
││┌ kwcall(::@NamedTuple{grace::Float64}, ::Type{Downloads.Downloader}) @ Downloads /cache/build/builder-amdci4-7/julialang/julia-release-1-dot-12/usr/share/julia/stdlib/v1.12/Downloads/src/Downloads.jl:46
│││┌ Downloads.Downloader(; grace::Float64) @ Downloads /cache/build/builder-amdci4-7/julialang/julia-release-1-dot-12/usr/share/julia/stdlib/v1.12/Downloads/src/Downloads.jl:46
││││┌ Downloads.Downloader(multi::Downloads.Curl.Multi) @ Downloads /cache/build/builder-amdci4-7/julialang/julia-release-1-dot-12/usr/share/julia/stdlib/v1.12/Downloads/src/Downloads.jl:44
│││││┌ get_ca_roots() @ Downloads /cache/build/builder-amdci4-7/julialang/julia-release-1-dot-12/usr/share/julia/stdlib/v1.12/Downloads/src/Downloads.jl:58
││││││┌ ca_roots_path() @ NetworkOptions /cache/build/builder-amdci4-7/julialang/julia-release-1-dot-12/usr/share/julia/stdlib/v1.12/NetworkOptions/src/ca_roots.jl:51
│││││││ no matching method found `convert(::Type{String}, ::Nothing)`: convert(NetworkOptions.String, _2::Nothing)
││││││└────────────────────

the paths for GAP (the local package I am working with) is correct. But for all the stdlibs (in the case here Downloads and NetworkOptions), the printed path is some absolute path from the buildkite runner. Thus, it is not possible to ctrl-click it in the vs code repl to go directly to that location.

I am not sure if this is an issue with JET or with julia itself. If @aviatesk says this is not JET's fault, I will move this issue to julialang/julia instead.