Sync all stripe subscriptions not only the active ones

[Somtom]

Description of change

The default setting of the API is to return only non-cancelled subscriptions - as stated in the docs:

By default, returns a list of subscriptions that have not been canceled. In order to list canceled subscriptions, specify status=canceled.

This leads to the problem that we currently technically only sync not cancelled subscriptions and exclude the cancelled ones. However, it seems that some - but not all - cancelled ones are included in the request (I could not figure out why).
To tackle the problem I did the following changes:

• Added a request_args parameter to the STREAM_SDK_OBJECTS which can be used to specify additional request parameters for the api call
• Added a request argument to subscriptions to fetch subscriptions with any status

Manual QA steps

• Perform an extraction using the master branch -> Perform a SELECT COUNT(*) on the results
• Perform an extraction using this branch -> Perform a SELECT COUNT(*) on the results -> you should have all subscriptions now

Risks

• ?

Rollback steps

• revert this branch

[dmosorast]

@Somtom Thanks for the PR! I just happened to come up with this exact case as well. I've pulled your commit into my branch in #113 to get tests run over it, reviewed, and released. I cherry-picked so the change is associated with your user. Closing this PR.

Cheers!

[Somtom]

@dmosorast thanks so much!