make select_artifacts.jl work on 1.7

Author: vchuravy

test/LAMMPS_jll/.pkg/platform_augmentation.jl

@@ -5,7 +5,9 @@ function known_abis()
     return (:MicrosoftMPI, :MPICH, :MPItrampoline)
 end
 
-const abi = @load_preference("abi", Sys.iswindows() ? :MicrosoftMPI : :MPICH)
+const LAMMPS_UUID = parse(Base.UUID, "5b3ab26d-9607-527c-88ea-8fe5ba57cafe")
+
+const abi = load_preference(LAMMPS_UUID, "abi", Sys.iswindows() ? :MicrosoftMPI : :MPICH)
 
 function set_abi(abi)
     if abi ∉ known_abis()
@@ -15,7 +17,7 @@ function set_abi(abi)
             $(known_abis())
         """)
     end
-    @set_preferences!("abi" => string(abi))
+    set_preferences!(LAMMPS_UUID, "abi" => string(abi), force=true)
     @warn "The MPI abi has changed, you will need to restart Julia for the change to take effect" abi
     return abi
 end

test/LAMMPS_jll/.pkg/select_artifacts.jl

@@ -1,3 +1,5 @@
+push!(LOAD_PATH, "..")
+
 using TOML, Artifacts, Base.BinaryPlatforms
 include("./platform_augmentation.jl")
 artifacts_toml = joinpath(dirname(@__DIR__), "Artifacts.toml")