Changes have to be done in the v6 branch, not main!

GH issue: https://github.com/patternfly/react-component-groups/issues/201

• Within modal: update action list gap spacing to use global/spacer/gap/action-to-action: 16px/spacer-300

•  Within modal: font weight on heading needs to be updated to be bold to match the v6 modal styling: font-weight: var({}pf-v6-c-modal-box__title{-}-FontWeight);