Update dependency scrollama to v3

Editor assessment

A self-sufficient dependency bump: `chore(deps): update dependency scrollama to v3` names the exact package and the target major version, so the change is fully understandable without a diff. The absent body is appropriate for automated dependency maintenance, which the rubric exempts for routine small changes. The `Co-authored-by: Renovate Bot <email>` trailer is well formed and honestly attributes the automation. Type and scope (`chore(deps)`) are exactly right for a dependency-only change. Style hygiene is excellent — imperative-compatible phrasing, no trailing period, compact subject, no junk. Clear, correct, and honest at the good level.