Merge branch 'renovate/major-customizable-dashboards-packages' into 'master'

Update dependency gridstack to v8

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/119145



Merged-by: Robert Hunt <rhunt@gitlab.com>
Approved-by: Robert Hunt <rhunt@gitlab.com>
Approved-by: Vitaly Slobodin <vslobodin@gitlab.com>
Co-authored-by: Elwyn Benson <ebenson@gitlab.com>
Co-authored-by: GitLab Renovate Bot <gitlab-bot@gitlab.com>