fix: onColumnSizingChange does not return correct value when react strictmode is not used (#4573)

* Fix issue where onColumnSizingChange does not return any values when react.strictmode is not used

* change newColumnSizing from let to const

Co-authored-by: Brett Joe <brettjoe@Bretts-MacBook-Pro.local>

Author: bjoe87

packages/table-core/src/features/ColumnSizing.ts

@@ -218,6 +218,8 @@ export const ColumnSizing: TableFeature = {
             ? Math.round(e.touches[0]!.clientX)
             : (e as MouseEvent).clientX
 
+          const newColumnSizing: ColumnSizingState = {}
+
           const updateOffset = (
             eventType: 'move' | 'end',
             clientXPos?: number
@@ -226,8 +228,6 @@ export const ColumnSizing: TableFeature = {
               return
             }
 
-            let newColumnSizing: ColumnSizingState = {}
-
             table.setColumnSizingInfo(old => {
               const deltaOffset = clientXPos - (old?.startOffset ?? 0)
               const deltaPercentage = Math.max(