Dependency Path-syntax causes error on Julia 1.7

[jeremiahpslewis]

For the standard build command:

julia build_tarballs.jl --verbose --debug x86_64-linux-gnu

Tested on Julia 1.6 and there are no issues.

 Dependency(PackageSpec(; name = "boost_jll",  uuid = "28df3c45-c428-5900-9ff8-a3135698ca75", path = "/root/.julia/dev/boost_jll")),

  [3f19e933] + p7zip_jll v16.2.1+2
ERROR: LoadError: MethodError: no method matching get_last_stdlibs(::Nothing)
Closest candidates are:
  get_last_stdlibs(::VersionNumber) at ~/julia-1.7.1/share/julia/stdlib/v1.7/Pkg/src/Types.jl:416
Stacktrace:
 [1] stdlib_version(uuid::Base.UUID, julia_version::Nothing)
   @ BinaryBuilderBase ~/.julia/dev/BinaryBuilderBase/src/compat.jl:23
 [2] (::BinaryBuilderBase.var"#88#94"{Bool, Prefix, Vector{Pkg.Types.PackageSpec}, Platform, Vector{String}, Vector{String}})()
   @ BinaryBuilderBase ~/.julia/dev/BinaryBuilderBase/src/Prefix.jl:598
 [3] activate(f::BinaryBuilderBase.var"#88#94"{Bool, Prefix, Vector{Pkg.Types.PackageSpec}, Platform, Vector{String}, Vector{String}}, new_project::String)
   @ Pkg.API ~/julia-1.7.1/share/julia/stdlib/v1.7/Pkg/src/API.jl:1599
 [4] setup_dependencies(prefix::Prefix, dependencies::Vector{Pkg.Types.PackageSpec}, platform::Platform; verbose::Bool)
   @ BinaryBuilderBase ~/.julia/dev/BinaryBuilderBase/src/Prefix.jl:565
 [5] (::BinaryBuilder.var"#setup_deps#27")(f::typeof(BinaryBuilderBase.is_target_dependency), prefix::Prefix, dependencies::Vector{BinaryBuilderBase.AbstractDependency}, platform::Platform, verbose::Bool)
   @ BinaryBuilder ~/.julia/packages/BinaryBuilder/FL6q3/src/AutoBuild.jl:754
 [6] autobuild(dir::AbstractString, src_name::AbstractString, src_version::VersionNumber, sources::Vector{<:BinaryBuilderBase.AbstractSource}, script::AbstractString, platforms::Vector, products::Vector{<:Product}, dependencies::Vector{<:BinaryBuilderBase.AbstractDependency}; verbose::Bool, debug::Bool, skip_audit::Bool, ignore_audit_errors::Bool, autofix::Bool, code_dir::Union{Nothing, String}, require_license::Bool, kwargs::Base.Pairs{Symbol, V, Tuple{Vararg{Symbol, N}}, NamedTuple{names, T}} where {V, N, names, T<:Tuple{Vararg{Any, N}}})
   @ BinaryBuilder ~/.julia/packages/BinaryBuilder/FL6q3/src/AutoBuild.jl:757
 [7] build_tarballs(ARGS::Any, src_name::Any, src_version::Any, sources::Any, script::Any, platforms::Any, products::Any, dependencies::Any; julia_compat::String, kwargs::Base.Pairs{Symbol, V, Tuple{Vararg{Symbol, N}}, NamedTuple{names, T}} where {V, N, names, T<:Tuple{Vararg{Any, N}}})
   @ BinaryBuilder ~/.julia/packages/BinaryBuilder/FL6q3/src/AutoBuild.jl:321
 [8] top-level scope
   @ ~/Yggdrasil/Q/QLever/build_tarballs.jl:114