Jan Čermák 27609ee992 Migrate builder workflow to new builder actions (#6653) ...

* Migrate builder workflow to new builder actions

Migrate Supervisor image build to new builder actions. The resulting images
should be identical to those built by the builder.

Refs #6646 - does not implement multi-arch manifest publishing (will be done in
a follow-up)

* Update devcontainer version to 3

2026-03-24 10:04:18 +01:00

..

devcontainer.json

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