Bump rollup from 2.26.11 to 2.27.1

Editor assessment

This header does its one job exactly: it names the bumped package and both version pins, rollup from 2.26.11 to 2.27.1, so the change is fully identified without the diff. The build(deps-dev) classification is accurate for a development tooling bump, mood and punctuation are clean, and the PR reference is the repo's standard convention. No body is needed for a mechanical version move and none is penalized; nothing breaks and no footer is owed. The message is correct and complete for its purpose, held below exemplar only by the absence of any note on what the minor update brings.