Failure to work with PackageCompiler due to MKL

The following simple app fails to be executed:

```julia
module MyApp

using FFTW

function julia_main()::Cint
@show FFTW.fftw_provider
@show fft(rand(10))
return 0
end

end # module
```

I'm on julia 1.7.1 with PackageCompiler v2.0.2, FFTW v1.4.5 and MKL_jll v2021.1.1+2. I'm on Windows (powershell 7.2.1), but I've noticed the issue also on other systems.

I'm creating the app with

```julia
create_app(".", "AppCompiled") # I'm in the MyApp folder
```

Below is the error:

C:\Users\pietro\Documents\scratch\MyApp> .\AppCompiled\bin\MyApp.exe

  Downloaded artifact: MKL

  Downloaded artifact: MKL

fatal: error thrown and no exception handler available.

InitError(mod=:MKL_jll, error=ErrorException("Unable to automatically install 'MKL' from 'C:\Users\pietro\.julia\packages\MKL_jll\kG4RZ\Artifacts.toml'"))

error at .\error.jl:33

#ensure_artifact_installed#23 at C:\Users\pietro\.julia\juliaup\julia-1.7.1+0~x64\share\julia\stdlib\v1.7\Pkg\src\Artifacts.jl:441

ensure_artifact_installed##kw at C:\Users\pietro\.julia\juliaup\julia-1.7.1+0~x64\share\julia\stdlib\v1.7\Pkg\src\Artifacts.jl:413

unknown function (ip: 00000000177fd16c)

#ensure_artifact_installed#22 at C:\Users\pietro\.julia\juliaup\julia-1.7.1+0~x64\share\julia\stdlib\v1.7\Pkg\src\Artifacts.jl:404

unknown function (ip: 00000000177f498c)

ensure_artifact_installed##kw at C:\Users\pietro\.julia\juliaup\julia-1.7.1+0~x64\share\julia\stdlib\v1.7\Pkg\src\Artifacts.jl:399

unknown function (ip: 00000000177f4678)

_artifact_str at C:\Users\pietro\.julia\juliaup\julia-1.7.1+0~x64\share\julia\stdlib\v1.7\Artifacts\src\Artifacts.jl:547

unknown function (ip: 00000000177ecb4b)

jl_apply at /cygdrive/c/buildbot/worker/package_win64/build/src\julia.h:1788 [inlined]

jl_f__call_latest at /cygdrive/c/buildbot/worker/package_win64/build/src\builtins.c:757

jl_apply at /cygdrive/c/buildbot/worker/package_win64/build/src\julia.h:1788 [inlined]

do_apply at /cygdrive/c/buildbot/worker/package_win64/build/src\builtins.c:713

#invokelatest#2 at .\essentials.jl:716

jl_apply at /cygdrive/c/buildbot/worker/package_win64/build/src\julia.h:1788 [inlined]

do_apply at /cygdrive/c/buildbot/worker/package_win64/build/src\builtins.c:713

invokelatest at .\essentials.jl:714

jl_apply at /cygdrive/c/buildbot/worker/package_win64/build/src\julia.h:1788 [inlined]

do_call at /cygdrive/c/buildbot/worker/package_win64/build/src\interpreter.c:126

eval_value at /cygdrive/c/buildbot/worker/package_win64/build/src\interpreter.c:215

eval_stmt_value at /cygdrive/c/buildbot/worker/package_win64/build/src\interpreter.c:166 [inlined]

eval_body at /cygdrive/c/buildbot/worker/package_win64/build/src\interpreter.c:587

jl_fptr_interpret_call at /cygdrive/c/buildbot/worker/package_win64/build/src\interpreter.c:675

macro expansion at C:\Users\pietro\.julia\juliaup\julia-1.7.1+0~x64\share\julia\stdlib\v1.7\Artifacts\src\Artifacts.jl:680 [inlined]

find_artifact_dir at C:\Users\pietro\.julia\packages\JLLWrappers\RYztT\src\wrapper_generators.jl:17

__init__ at C:\Users\pietro\.julia\packages\MKL_jll\kG4RZ\src\wrappers\x86_64-w64-mingw32.jl:9

jl_apply at /cygdrive/c/buildbot/worker/package_win64/build/src\julia.h:1788 [inlined]

jl_module_run_initializer at /cygdrive/c/buildbot/worker/package_win64/build/src\toplevel.c:73

_finish_julia_init at /cygdrive/c/buildbot/worker/package_win64/build/src\init.c:796

jl_init_with_image at /cygdrive/c/buildbot/worker/package_win64/build/src\jlapi.c:74 [inlined]

jl_init_with_image at /cygdrive/c/buildbot/worker/package_win64/build/src\jlapi.c:63 [inlined]

jl_init at /cygdrive/c/buildbot/worker/package_win64/build/src\jlapi.c:90

.text at C:\Users\pietro\Documents\scratch\MyApp\AppCompiled\bin\MyApp.exe (unknown line)

__tmainCRTStartup at C:\Users\pietro\Documents\scratch\MyApp\AppCompiled\bin\MyApp.exe (unknown line)

.l_start at C:\Users\pietro\Documents\scratch\MyApp\AppCompiled\bin\MyApp.exe (unknown line)

BaseThreadInitThunk at C:\Windows\System32\KERNEL32.DLL (unknown line)

RtlUserThreadStart at C:\Windows\SYSTEM32\ntdll.dll (unknown line)

I think something is off because by default I don't think FFTW should even try to use (or install) MKL to compute the Fourier transform. If I run the `julia_main` function normally, I get

```julia
FFTW.fftw_provider = "fftw"
```

It seems to be related to #210.

Start by reproducing the create_app workflow with the MyApp julia_main entry point and compare it with normal execution. Inspect the MKL_jll initialization, Artifacts.jl, and JLLWrappers wrapper paths shown in the trace, then review issue #210. Done means the compiled app runs without the MKL artifact failure while preserving the reported FFTW behavior.

Written by the indexing model from the issue text.