GHSA-35RR-XWFH-X789 Highcharts Core: `breadcrumbs.style` keys become SVG event-handler attributes

Impact The breadcrumbs style option is applied to the breadcrumb button as SVG attributes rather than as CSS, and the attribute names are not filtered. An attacker who controls the chart configuration can supply keys under breadcrumbs.style that name event handlers, and those keys become live...