I think you could use either of these sets to reset lists in callouts (or adjust as desired):
.callout ul { margin-block-start: unset; }
.callout ol { margin-block-start: unset; }
and/or:
.callout li {
padding-top: unset;
padding-bottom: unset;
line-height: unset;
}
.callout :is(ul, ol) {
margin-top: unset;
margin-bottom: unset;
}
Give both a try.