1.9.0

What's Changed

• [#322] Fix seq for timezone-aware start value by @timjklein36 in #353
• Fix #298 -- create m2m when using _bulk_create=True by @amureki in #354
• [dev] Use official postgis docker image in CI by @amureki in #355

Full Changelog: 1.8.0...1.9.0