First external contributions and late release

• Use native sqlite3 dump to make it work with virtual tables (not supported by Python .iterdump()). The issue #38 was referenced by python/cpython#108340 for the investigation work. 😍

• Raise errors on shell exceptions (#37)

• Support Django default port empty (#41) (thanks to @oruehenbeck and @tobiasfunke1)

• Create local folder if it does not exist (41) (thanks to @oruehenbeck and @tobiasfunke1)

Thanks to @walison17 for helping me with the example project CI investigation, leading to a django-storages regression issue.