unable to install impedancefitter

I fail to install the PyPy-package [`ImpedanceFitter`](https://github.com/j-zimmermann/ImpedanceFitter).
I also tried in Julia RC v.1.8.3.
Here my commands:
```
import Pkg; Pkg.add("CondaPkg")
import Pkg; Pkg.add("PythonCall")
impfit = PythonCall.pyimport("impedancefitter")
```
and here is the error output on my machine:
```
The environment can't be solved, aborting the operation
error libmamba Could not solve for environment specs
critical libmamba UnsatisfiableError
ERROR: failed process: Process(`'C:\Users\stefanpofahl\.julia\artifacts\7950c161b9c76ecc6d58b2b6734696fee7d8e4a0\Library\bin\micromamba.exe' -r 'C:\Users\stefanpofahl\.julia\scratchspaces\0b3b1443-0f03-428d-bdfb-f27f9c1191ea\root' create -y -p 'C:\Users\stefanpofahl\.julia\environments\v1.9\.CondaPkg\env' --override-channels --no-channel-priority "impedancefitter[version='*']" "python[version='>=3.7,<4',channel='conda-forge',build='*cpython*']" -c conda-forge`, ProcessExited(1)) [1]

Stacktrace:
[1] pipeline_error
@ .\process.jl:565 [inlined]
[2] run(::Cmd; wait::Bool)
@ Base .\process.jl:480
[3] run(::Cmd)
@ Base .\process.jl:477
[4] _run(io::IO, cmd::Cmd, args::Any; flags::Any)
@ CondaPkg C:\Users\stefanpofahl\.julia\packages\CondaPkg\RuSdR\src\resolve.jl:301
[5] _resolve_conda_install(io::Any, conda_env::Any, specs::Any, channels::Any; create::Any)
@ CondaPkg C:\Users\stefanpofahl\.julia\packages\CondaPkg\RuSdR\src\resolve.jl:202
[6] resolve(; force::Bool, io::IO, interactive::Bool, dry_run::Bool)
@ CondaPkg C:\Users\stefanpofahl\.julia\packages\CondaPkg\RuSdR\src\resolve.jl:452
[7] resolve()
@ CondaPkg C:\Users\stefanpofahl\.julia\packages\CondaPkg\RuSdR\src\resolve.jl:315
[8] add(pkgs::AbstractVector; resolve::Any, file::Any, temp::Any)
@ CondaPkg C:\Users\stefanpofahl\.julia\packages\CondaPkg\RuSdR\src\deps.jl:244
[9] add(pkgs::AbstractVector)
@ CondaPkg C:\Users\stefanpofahl\.julia\packages\CondaPkg\RuSdR\src\deps.jl:231
[10] add(pkg::Union{CondaPkg.ChannelSpec, CondaPkg.PipPkgSpec, CondaPkg.PkgSpec}; kw::Base.Pairs{Symbol, V, Tuple{Vararg{Symbol, N}}, NamedTuple{names, T}} where {V, N, names, T<:Tuple{Vararg{Any, N}}})
@ CondaPkg C:\Users\stefanpofahl\.julia\packages\CondaPkg\RuSdR\src\deps.jl:248
[11] add(pkg::Union{CondaPkg.ChannelSpec, CondaPkg.PipPkgSpec, CondaPkg.PkgSpec})
@ CondaPkg C:\Users\stefanpofahl\.julia\packages\CondaPkg\RuSdR\src\deps.jl:248
[12] add(pkg::AbstractString; version::Any, channel::Any, build::Any, kw::Base.Pairs{Symbol, V, Tuple{Vararg{Symbol, N}}, NamedTuple{names, T}} where {V, N, names, T<:Tuple{Vararg{Any, N}}})
@ CondaPkg C:\Users\stefanpofahl\.julia\packages\CondaPkg\RuSdR\src\deps.jl:375
[13] add(pkg::AbstractString)
@ CondaPkg C:\Users\stefanpofahl\.julia\packages\CondaPkg\RuSdR\src\deps.jl:375
[14] top-level scope
@ REPL[6]:1
```
Do you have asuggestion?

Reproduce the reported Julia REPL commands on the Windows setup, then start with the CondaPkg resolver entries shown in the stack trace: src/resolve.jl at lines 202, 301, and 452. Compare the failing environment specifications with the impedancefitter and Python requirements; done means CondaPkg resolves successfully and PythonCall.pyimport("impedancefitter") completes.

Vom Indexierungsmodell aus dem Issue-Text verfasst.