supervisor: Supervisor update issue / 500 Server Error

Home Assistant release with the issue: 0.112.4

Operating environment (HassOS/Generic): HassOS 4.11

Supervisor logs:

20-07-24 07:24:44 INFO (MainThread) [supervisor.updater] Fetch update data from https://version.home-assistant.io/stable.json
20-07-24 07:24:50 INFO (MainThread) [supervisor.api.security] /supervisor/update access from core_ssh
20-07-24 07:24:50 INFO (MainThread) [supervisor.supervisor] Update Supervisor to version 229
20-07-24 07:24:50 INFO (SyncWorker_3) [supervisor.docker.interface] Pull image homeassistant/armv7-hassio-supervisor tag 229.
20-07-24 07:25:06 ERROR (SyncWorker_3) [supervisor.docker.interface] Can't install homeassistant/armv7-hassio-supervisor:229 -> 500 Server Error: Internal Server Error ("Get https://registry-1.docker.io/v2/homeassistant/armv7-hassio-supervisor/manifests/229: Get https://auth.docker.io/token?scope=repository%3Ahomeassistant%2Farmv7-hassio-supervisor%3Apull&service=registry.docker.io: net/http: request canceled (Client.Timeout exceeded while awaiting headers)").
20-07-24 07:25:06 ERROR (MainThread) [supervisor.supervisor] Update of Supervisor fails!

Description of problem: I am trying to update the supervisor from 228 to 229 for a few days now but can’t get it to work and don’t know where to start looking for a solution. As far as I remember I didn’t change anything except for the HassOS 4.11 update. Any ideas?