addons: Check HA config fails with installation of idna

The problem

I’m trying to use the track configuration add-on but it crashes

Environment

• Add-on with the issue: Check configuration
• Add-on release with the issue: 3.7.1
• Last working add-on release (if known): 3.6.0 (?)
• Operating environment (OS/Supervised): OS

Problem-relevant configuration

Traceback/Error logs

[s6-init] making user provided files available at /var/run/s6/etc...exited 0.
[s6-init] ensuring user provided files have correct perms...exited 0.
[fix-attrs.d] applying ownership & permissions fixes...
[fix-attrs.d] done.
[cont-init.d] executing container initialization scripts...
[cont-init.d] udev.sh: executing... 
[cont-init.d] udev.sh: exited 0.
[cont-init.d] done.
[services.d] starting services
[services.d] done.
[22:26:48] INFO: Don't worry, this temporary installation is not overwriting your current one.
[22:26:48] INFO: Installing Home Assistant: latest...
[22:26:48] INFO: Please be patient, this might take a few minutes...
[22:27:56] INFO: Installed Home Assistant 2021.6.5
[22:27:56] INFO: Making a copy of your configuration for checking...
[22:27:56] INFO: Checking your configuration against this version...
[22:31:22] ERROR: The configuration check did not pass!
[22:31:22] ERROR: See the output below for more details.
Testing configuration at /tmp/config
Fatal error while loading config: [Errno 2] No such file or directory: '/usr/local/lib/python3.8/site-packages/idna-3.2.dist-info/METADATA'
Failed config
  General Errors: 
    - [Errno 2] No such file or directory: '/usr/local/lib/python3.8/site-packages/idna-3.2.dist-info/METADATA'

Successful config (partial)
[22:31:22] INFO: The full output has been written to /share/check_config.txt
s6-svscanctl: fatal: unable to control /var/run/s6/services: supervisor not listening
[cont-finish.d] executing container finish scripts...
[cont-finish.d] done.
[s6-finish] waiting for services.
[s6-finish] sending all processes the TERM signal.
[s6-finish] sending all processes the KILL signal and exiting.

Additional information

This looks like a strange mix of #1978 and #1773 but as both this bugs are fixed in 3.7.1, especially the “hypervisor not listening stuff” I opened a new one