Replace instances of lodash.assign with Object.assign

.changeset/brave-cycles-matter.md

@@ -0,0 +1,34 @@
+---
+"victory-area": patch
+"victory-axis": patch
+"victory-bar": patch
+"victory-box-plot": patch
+"victory-brush-container": patch
+"victory-brush-line": patch
+"victory-candlestick": patch
+"victory-canvas": patch
+"victory-chart": patch
+"victory-core": patch
+"victory-cursor-container": patch
+"victory-errorbar": patch
+"victory-group": patch
+"victory-histogram": patch
+"victory-legend": patch
+"victory-line": patch
+"victory-native": patch
+"victory-pie": patch
+"victory-polar-axis": patch
+"victory-scatter": patch
+"victory-selection-container": patch
+"victory-shared-events": patch
+"victory-stack": patch
+"victory-tooltip": patch
+"victory-voronoi": patch
+"victory-voronoi-container": patch
+"victory": patch
+"victory-create-container": patch
+"victory-vendor": patch
+"victory-zoom-container": patch
+---
+
+Replace instances of lodash.assign with Object.assign