Update dependency core-js to ^3.34.0

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/138826



Merged-by: Lukas 'Eipi' Eipert <leipert@gitlab.com>
Approved-by: Lukas 'Eipi' Eipert <leipert@gitlab.com>
Co-authored-by: GitLab Renovate Bot <gitlab-bot@gitlab.com>