Seveno-pyutil

- feat: replaced logging formatters with `PrettyFormatter`
- feat: added `next_working_day()`
- feat: replaced dateutil timezones with `zoneinfo`
- chore: added some `typing` annotations

- feat: prettier error log message in SQLFilter

- feat: added `iter_year_month`
- switched from TravisCI -> GitHub actions

- fix: SQL logs shortening is now configurable, for ultimate flexibility

- fix: another try at SQL logging very long SQL statements and/or parameters

- fix: prevented SQL logging from producing huge messages and crashing loggers