This fixes a situation in which after updating the data
or options provided to the chart, the tooltip would stop
working.

This fix works by preventing the deprecated tooltip
formatter from overriding the formatter provided by
the tooltip component.

fix(GlLineChart, GlAreaChart, GlStackedColumn): Fix tooltip chart update

See merge request gitlab-org/gitlab-ui!5046



Merged-by: Peter Hegman <phegman@gitlab.com>
Approved-by: Kushal Pandya <kushal@gitlab.com>
Approved-by: Peter Hegman <phegman@gitlab.com>
Reviewed-by: Miguel Rincon <mrincon@gitlab.com>
Co-authored-by: Miguel Rincon <mrincon@gitlab.com>

## [111.8.1](v111.8.0...v111.8.1) (2025-03-27)

### Bug Fixes

* **GlLineChart, GlAreaChart, GlStackedColumn:** Fix tooltip updates ([7ac5e589](7ac5e589))