TDL 22684/sync all form ids and handle no questions error

[kethan1122]

Description of change

Handles/Fixes:

• Syncs data for all forms if no form ID is provided in config.
• Currently, tap fails with an following error when there are no questions associated with a form. Handles this scenario by logging a statement and continues to sync data for other streams.
• Updates unittests

  CRITICAL 'fields'
  Traceback (most recent call last):
  File "/Users/Documents/project/taps/tap-typeform/tap_typeform/__init__.py", line 54, in <module>
  main()
  File "/Users/Documents/project/taps/tap-typeform/typeform-venv/lib/python3.9/site-packages/singer_python-5.10.0-py3.9.egg/singer/utils.py", line 229, in wrapped
  return fnc(*args, **kwargs)
  File "/Users/Documents/project/taps/tap-typeform/tap_typeform/__init__.py", line 51, in main
  _sync(client, config, args.state, catalog.to_dict(), valid_forms)
  File "/Users/Documents/project/taps/tap-typeform/typeform-venv/lib/python3.9/site-packages/tap_typeform-2.0.1-py3.9.egg/tap_typeform/sync.py", line 76, in sync
  stream_obj.sync_obj(client, state, catalog['streams'], form, config["start_date"],
  File "/Users/Documents/project/taps/tap-typeform/typeform-venv/lib/python3.9/site-packages/tap_typeform-2.0.1-py3.9.egg/tap_typeform/streams.py", line 176, in sync_obj
  for record in response[self.data_key]:
  KeyError: 'fields'

Manual QA steps

• Tested without having forms field in config and noticed data being extracted for all the forms.
• Tested with forms field value as "" and None and noticed data being extracted for all the forms.
• Tested with single valid form_id in config and noticed data being extracted only for that single form id.
• Tested with multiple valid form_ids which are comma separated in config and noticed data being extracted only for those form IDs
• Created a form with no questions and made sure tap logs a statement which reads There are no questions associated with form without failing.

Risks

• Low, all the existing connections should be having forms field configured. This changes will not have any impact on them

Rollback steps

• revert this branch

[aaronbannin]

Thanks @kethan1122 and @dsprayberry!