Refactor: Correct polling infrequent/periodic_sequence usecase

[pfranck]

What was changed

We use the activity.info().attempt value to feed the TestService

Why?

Before this change the attempt value in the TestService was never change and stay to 0

Checklist

2. How was this tested:
   Run the 2 command explain in the readme - success on 5 atempts

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[cretz]

Thanks! Seems this was written with a bug.

I think a cleaner approach would be to make this activity a method (and call via execute_activity_method from workflow) and instantiate the TestService as class state.

Also, I think frequent polling is affected by this same test service issue.

[cretz]

Looks good, thanks! May need reformat (poe format) and may need to check types (poe lint-types). If you want you can also apply to the other polling test that uses this test service, but no worries if not, we can create another issues.

[pfranck]

poe format and poe lint-types have been runned