Fixed bug causing error and added type hinting

[maxachis]

Fixes

• None. Hotfix.

Description

• Addresses the following bug which occurred in automation.pdap.io:

  Traceback (most recent call last):
  File "/var/lib/jenkins/workspace/Data Sources Mirror/mirror.py", line 389, in <module>
  full_mirror_to_digital_ocean()
  File "/var/lib/jenkins/workspace/Data Sources Mirror/mirror.py", line 24, in full_mirror_to_digital_ocean
  data = get_full_table_data(table)
  File "/var/lib/jenkins/workspace/Data Sources Mirror/mirror.py", line 42, in get_full_table_data
  data = api.table(
  File "/usr/local/lib/python3.9/site-packages/pyairtable/api/table.py", line 263, in all
  return [record for page in self.iterate(**options) for record in page]
  File "/usr/local/lib/python3.9/site-packages/pyairtable/api/table.py", line 263, in <listcomp>
  return [record for page in self.iterate(**options) for record in page]
  File "/usr/local/lib/python3.9/site-packages/pyairtable/api/table.py", line 233, in iterate
  for page in self.api.iterate_requests(
  File "/usr/local/lib/python3.9/site-packages/pyairtable/api/api.py", line 301, in iterate_requests
  response = self.request(method, url, fallback=fallback, options=options)
  File "/usr/local/lib/python3.9/site-packages/pyairtable/api/api.py", line 251, in request
  return self._process_response(response)
  File "/usr/local/lib/python3.9/site-packages/pyairtable/api/api.py", line 265, in _process_response
  raise exc
  File "/usr/local/lib/python3.9/site-packages/pyairtable/api/api.py", line 255, in _process_response
  response.raise_for_status()
  File "/usr/local/lib/python3.9/site-packages/requests/models.py", line 1024, in raise_for_status
  raise HTTPError(http_error_msg, response=self)
  requests.exceptions.HTTPError: ('422 Client Error: Unprocessable Entity for url: https://api.airtable.com/v0/app473MWXVJVaD7Es/Data%20Requests?filterByFormula=DATETIME_DIFF%28NOW%28%29%2Cstatus_last_changed%2C%27hours%27%29+%3C+2', "{'type': 'INVALID_FILTER_BY_FORMULA', 'message': 'The formula for filtering records is invalid: Unknown field names: status_last_changed'}")

• Also added Type Hinting under the "Leave it better than you found it" principle

Testing

• Run the script following the instructions in the README.md file.

Performance

• Not applicable.

Docs

• Not applicable.