fix(checkpoint): honor train_time_interval under manual_optimization#21699

wietzesuijker wants to merge 1 commit intoLightning-AI:masterLightning-AI/pytorch-lightning:masterfrom

wietzesuijker:fix/manual-opt-train-time-intervalwietzesuijker/pytorch-lightning:fix/manual-opt-train-time-intervalCopy head branch name to clipboard