Fixes #37444 - get rid of sidekiq deprecation warnings

[sbernhard]

Get rid of messages like:

May 13 19:54:29 or dynflow-sidekiq@orchestrator[29190](https://projects.theforeman.org/issues/37444#fn29190): 2024-05-13T17:54:29.245Z pid=29190 tid=nfe WARN: `config.options[:key] = value` is deprecated, use `config[:key] = value`: ["/usr/share/foreman/extras/dynflow-sidekiq.rb:19:in `<top (required)>'", "/usr/share/rubygems/rubygems/core_ext/kernel_require.rb:83:in `require'"]
May 13 19:54:29 or dynflow-sidekiq@orchestrator[29190](https://projects.theforeman.org/issues/37444#fn29190): 2024-05-13T17:54:29.245Z pid=29190 tid=nfe WARN: `config.options[:key] = value` is deprecated, use `config[:key] = value`: ["/usr/share/foreman/extras/dynflow-sidekiq.rb:20:in `<top (required)>'", "/usr/share/rubygems/rubygems/core_ext/kernel_require.rb:83:in `require'"]
May 13 19:54:29 or dynflow-sidekiq@orchestrator[29190](https://projects.theforeman.org/issues/37444#fn29190): 2024-05-13T17:54:29.245Z pid=29190 tid=nfe WARN: `config.options[:key] = value` is deprecated, use `config[:key] = value`: ["/usr/share/foreman/extras/dynflow-sidekiq.rb:36:in `<top (required)>'", "/usr/share/rubygems/rubygems/core_ext/kernel_require.rb:83:in `require'"]

[sbernhard]

Similar to Dynflow/dynflow#445

[adamruzicka]

APT

[ekohl]

Not sure why the Redmine issues check is failing, but I'm using my admin powers to merge it.