Timezone handling issue with datetime.timestamp() in Python 3.10+

Timezone handling issue with datetime.timestamp() in Python 3.10+: a task in harbor-swesmith-rl-artifacts: Harbor SWE-Smith 强化学习数据产物 (Harbor dataset). I'm experiencing an issue with the LocalTimezone. isdst method in the isodate library. When using Python 3.10+, the timezone formatting is broken…

The task

I'm experiencing an issue with the `LocalTimezone._isdst` method in the `isodate` library. When using Python 3.10+, the timezone formatting is broken for datetimes with timezone information.

Part of keryszhan/harbor-swesmith-rl-artifacts.