Fails to install under Python 3.11

Due to pynitrokey / nrfutil it is not possible to run tests under Python 3.11
Collecting pynitrokey
  Cloning https://github.com/nitrokey/pynitrokey (to revision e40f91a4232b09cbb6c92740f650b9c170da7033) to /tmp/pip-install-nv5iy9tk/pynitrokey_ba10ecfb0961435e84d9ff1270b33795
  Resolved https://github.com/nitrokey/pynitrokey to commit e40f91a4232b09cbb6c92740f650b9c170da7033
  Installing build dependencies: started
  Installing build dependencies: finished with status 'done'
  Getting requirements to build wheel: started
  Getting requirements to build wheel: finished with status 'done'
  Installing backend dependencies: started
  Installing backend dependencies: finished with status 'error'

  Running command git clone --filter=blob:none --quiet https://github.com/nitrokey/pynitrokey /tmp/pip-install-nv5iy9tk/pynitrokey_ba10ecfb0961435e84d9ff1270b33795
  Running command git rev-parse -q --verify 'sha^e40f91a4232b09cbb6c92740f650b9c170da7033'
  Running command git fetch -q https://github.com/nitrokey/pynitrokey e40f91a4232b09cbb6c92740f650b9c170da7033
  Running command git checkout -q e40f91a4232b09cbb6c92740f650b9c170da7033
  error: subprocess-exited-with-error

  × pip subprocess to install backend dependencies did not run successfully.
  │ exit code: 1
  ╰─> [36 lines of output]
      Collecting pyusb
        Using cached pyusb-1.2.1-py3-none-any.whl (58 kB)
      Collecting typing_extensions~=4.3.0
        Using cached typing_extensions-4.3.0-py3-none-any.whl (25 kB)
      Collecting cryptography<37,>=3.4.4
        Using cached cryptography-36.0.2-cp36-abi3-manylinux_2_24_x86_64.whl (3.6 MB)
      Collecting click<9,>=8.0.0
        Using cached click-8.1.3-py3-none-any.whl (96 kB)
      Collecting certifi>=14.5.14
        Downloading certifi-2023.5.7-py3-none-any.whl (156 kB)
           ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 157.0/157.0 kB 2.4 MB/s eta 0:00:00
      Collecting spsdk<1.8.0,>=1.7.0
        Using cached spsdk-1.7.1-py3-none-any.whl (684 kB)
      Collecting tlv8
        Using cached tlv8-0.10.0.tar.gz (16 kB)
        Preparing metadata (setup.py): started
        Preparing metadata (setup.py): finished with status 'done'
      Collecting ecdsa
        Using cached ecdsa-0.18.0-py2.py3-none-any.whl (142 kB)
      Collecting urllib3~=1.26.7
        Downloading urllib3-1.26.16-py2.py3-none-any.whl (143 kB)
           ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 143.1/143.1 kB 11.1 MB/s eta 0:00:00
      Collecting nkdfu
        Using cached nkdfu-0.2-py3-none-any.whl (16 kB)
      Collecting intelhex
        Using cached intelhex-2.3.0-py2.py3-none-any.whl (50 kB)
      Collecting tqdm
        Using cached tqdm-4.65.0-py3-none-any.whl (77 kB)
      Collecting cffi
        Using cached cffi-1.15.1-cp311-cp311-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (462 kB)
      ERROR: Ignored the following versions that require a different python version: 6.0.0 Requires-Python >=3.6, <=3.8; 6.0.1 Requires-Python >=3.6, <3.9; 6.1.0 Requires-Python >=3.6, <3.9; 6.1.1 Requires-Python >=3.7, <3.10; 6.1.2 Requires-Python >=3.7, <3.10; 6.1.3 Requires-Python >=3.7, <3.10; 6.1.4 Requires-Python >=3.7, <3.11; 6.1.5 Requires-Python >=3.7, <3.11; 6.1.6 Requires-Python >=3.7, <3.11; 6.1.7 Requires-Python >=3.7, <3.11
      ERROR: Could not find a version that satisfies the requirement nrfutil<7,>=6.1.4 (from versions: 0.5.2, 0.5.3, 1.1.1, 1.2.0, 1.2.1, 1.2.2, 1.2.3, 1.2.4, 1.2.5, 1.3.0, 1.3.1, 1.3.2, 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.5, 1.4.6, 1.4.7, 1.4.9, 1.4.10, 1.4.11, 1.4.12, 1.4.15, 1.4.16, 1.4.17, 1.4.18, 1.4.19, 1.4.20, 1.4.21, 1.5.0, 1.5.1, 1.5.2, 1.5.3, 1.5.5, 1.6.0, 2.0.0, 2.1.0, 2.2.0, 2.3.0, 3.0.0, 3.1.0, 3.2.0, 3.2.1, 3.3.0, 3.3.1, 3.3.2, 3.4.0, 3.5.0, 3.5.1, 4.0.0, 5.0.0, 5.1.0, 5.2.0, 6.0.0a0, 6.0.0a1)
      ERROR: No matching distribution found for nrfutil<7,>=6.1.4

      [notice] A new release of pip available: 22.3.1 -> 23.1.2
      [notice] To update, run: pip install --upgrade pip
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error

× pip subprocess to install backend dependencies did not run successfully.
│ exit code: 1
╰─> See above for output.

note: This error originates from a subprocess, and is likely not a problem with pip.

[notice] A new release of pip available: 22.3.1 -> 23.1.2
[notice] To update, run: pip install --upgrade pip
Nitrokey / nitrokey-3-tests

Fails to install under Python 3.11 #25
