Fixing 403 forbidden in `test_openaccess_scraper` (#92)

* Added search_pdf_link, with test

* Integrated search_pdf_link into lib

* Fully mocked openaccess scraper since we get 403's in CI

* Fixing test_link2_to_pdf_that_can_raise_403 by also capturing ClientResponseError

Increased backoff by 10x (#85)

* Increased backoff by 10x

* removed paranthesis

* fixed regression on tests

* Reduced length of high limit test

Fixed invalid method - status_code (#60)

* Fixed invalid method

* Update pyproject.toml

Added another check for arxiv from DOI (#59)

* added another check for arxiv

Bumped a bugfix version to 1.6.1 (#54)

Created a scaper that does not rely on S2 (#47)

* Version increment

* Update test_paperscraper.py

* Completed removal of S2

* missed a break

* Update paperscraper/lib.py

Co-authored-by: James Braza <jamesbraza@gmail.com>

* Update tests/test_paperscraper.py

Co-authored-by: James Braza <jamesbraza@gmail.com>

* Addressed PR Review part 1

* Reverting to avoid pytest dependency

* pre-commit

---------

Co-authored-by: James Braza <jamesbraza@gmail.com>

Adding more scrapers (#45)

* Adding more scrapers
* Reduced sleep on rate limiter

Update pyproject.toml

Faster S2 GS rate limits (#27)

* Update lib.py

* Update version.py

Fix S2 GS stuff (#26)

* Update lib.py

* Update version.py