[ioBroker] Update buanet/iobroker Docker tag to v5.2.0

[MaxWinterstein]

This PR contains the following updates:

Package	Type	Update	Change
buanet/iobroker		minor	v5.1.0 -> v5.2.0
buanet/iobroker	final	minor	v5.1.0 -> v5.2.0

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Release Notes

buanet/ioBroker.docker (buanet/iobroker)

v5.2.0

Compare Source

• v5.2.0-beta4 (2021-09-10)
  • adding iobroker user rights for "gosu"
  • adding more labels in OCI standard format
  • fixing work dir bug
  • adding backitup compatibility
• v5.2.0-beta3 (2021-09-04)
  • reducing layers in dockerfile
  • making hostname check mandatory for startup
  • enhance startup log
• v5.2.0-beta2 (2021-08-28)
  • redesign maintenance script
  • switching amd64 base image to debian bullseye slim
  • optimizing log output
  • adding labels in OCI standard format
  • adding packages update on first start
  • adding file for docker detection by ioBroker adapters
  • adding best practice for states db migration in readme
  • removing couchdb option for states db (no longer supported)
• v5.2.0-beta1 (2021-05-04)
  • added upgrade parameter to maintenance script
  • added expose for default admin ui port (fixes #​172)
  • added short form for maintenance script
• v5.2.0-beta (2021-04-02)
  • some renaming to enhance automated build
  • changes in versioning
  • delete travis for automated build

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