Description of problem:
Consider the following call

async_task(::Actions::BulkAction, ::Actions::Katello::Repository::Sync, [::Katello::Repository.librar.first], skip_metadata_check: true)

What ends up happening is that keyword arguments like 'skip_metadata_check' gets converted from symbols to string when BulkAction passes to the Sync. 

Actions like sync expect expect them to be symbols like {:skip_metadata_check => true}  but what gets passed to it from BulkActions is {'skip_metadata_check' => true} making all kwargs passed to it useless.


Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1.In the console run the following line (assuming you have at least one repo)

ForemanTasks.sync_task(::Actions::BulkAction, ::Actions::Katello::Repository::Sync, [::Katello::Repository.library.first], skip_metadata_check: true)

2. Go to https://<sat-fqdn>/foreman_tasks/dynflow  
3. Check the stopped and uncheck the pending and filter the search
4. You should see tasks Actions::Katello::Repository::Sync followed by 	Actions::BulkAction
5. Click show on the sync task
6. Check the params sent to the Actions::Katello::Repository::Sync
7. See the value set for skip_metadata_check
Actual results:
skip_metadata_check: false

Expected results:
skip_metadata_check: true

Additional info:

Any bulk action that accepts key word arguments are affected by this.