Python responses argument 'match_querystring' is deprecated

[cclauss]

https://github.com/getsentry/responses#deprecations-and-migration-path

These warnings are seen at the end of pytest runs.

tests/test_api.py::test_search_items
tests/test_api.py::test_search_items
tests/test_api.py::test_search_items_with_fields
tests/test_api.py::test_search_items_with_fields
tests/test_api.py::test_page_row_specification
tests/cli/test_ia_search.py::test_ia_search_itemlist
tests/cli/test_ia_search.py::test_ia_search_itemlist
tests/cli/test_ia_search.py::test_ia_search_num_found
  /home/runner/work/internetarchive/internetarchive/.tox/py/lib/python3.7/site-packages/responses/__init__.py:307: DeprecationWarning: Argument 'match_querystring' is deprecated. Use 'responses.matchers.query_param_matcher' or 'responses.matchers.query_string_matcher'