"do not serialize to JSON safely" warnings when used with sidekiq 6.5

[evgeni]

Nov 06 07:43:49 pipe-plugins-server-nightly-centos8-stream.tanso.example.com dynflow-sidekiq@worker-1[51842]: 2023-11-06T07:43:49.086Z pid=51842 tid=99ay class=Dynflow::Executors::Sidekiq::WorkerJobs::PerformWork jid=84b4df66648803f4b32649ee WARN: Job arguments to Dynflow::Executors::Sidekiq::OrchestratorJobs::WorkerDone do not serialize to JSON safely. This will raise an error in
Nov 06 07:43:49 pipe-plugins-server-nightly-centos8-stream.tanso.example.com dynflow-sidekiq@worker-1[51842]: Sidekiq 7.0. See https://github.com/mperham/sidekiq/wiki/Best-Practices or raise an error today
Nov 06 07:43:49 pipe-plugins-server-nightly-centos8-stream.tanso.example.com dynflow-sidekiq@worker-1[51842]: by calling `Sidekiq.strict_args!` during Sidekiq initialization.

Nov 06 07:43:50 pipe-plugins-server-nightly-centos8-stream.tanso.example.com dynflow-sidekiq@worker-1[51842]: 2023-11-06T07:43:50.444Z pid=51842 tid=99ae class=Dynflow::Executors::Sidekiq::WorkerJobs::PerformWork jid=32eb98a2ea4b0cf712a089da WARN: Job arguments to Dynflow::Executors::Sidekiq::OrchestratorJobs::WorkerDone do not serialize to JSON safely. This will raise an error in
Nov 06 07:43:50 pipe-plugins-server-nightly-centos8-stream.tanso.example.com dynflow-sidekiq@worker-1[51842]: Sidekiq 7.0. See https://github.com/mperham/sidekiq/wiki/Best-Practices or raise an error today
Nov 06 07:43:50 pipe-plugins-server-nightly-centos8-stream.tanso.example.com dynflow-sidekiq@worker-1[51842]: by calling `Sidekiq.strict_args!` during Sidekiq initialization.

I don't know what the tasks were, but it's freshly during an install of a Foreman with a few plugins (plugins install pipeline)