Update @gitlab/web-ide package version

- Updates built-in GitLab Workflow Extension version
  from 5.4.0 to 5.10.0 See changes:
- https://gitlab.com/gitlab-org/gitlab-vscode-extension/-/compare/v5.4.0...v5.10.0?from_project_id=5261717&straight=false
- Also adds message for disabled marketplace in enterprise users

Changelog: changed