Improve handling of the edge cases related to 'page-break-before' and 'no-hanging elements'

What's Changed

• chore(.gitmodules): update to the rename submodule: html2pdf -> html2pdf4doc by @stanislaw in #74
• chore: bump actions/upload-artifact from 5 to 6 in the github-actions group by @dependabot[bot] in #75
• feat(fuzzer): add support for linear/incremental mutations by @stanislaw in #76
• feat(submodules/html2pdf): update to the latest version by @stanislaw in #77

Full Changelog: 0.0.25...0.0.26