Bug - ChartLegendTooltip - Title prop has wrong type

[dlabrecq]

We recently updated a few components to match Victory's latest type updates. Now the title prop of ChartLegendTooltip incorrectly uses type string, which is inherited from VictoryLabelProps.

This title prop is actually used with VictroyLabel, so it should match the VictoryLabelProps type; string[] | StringOrNumberOrCallback.

As a workaround in Cost Management, I can cast to any. For example, title={(datum => datum.x) as any}