fix(slider): ensure value change end is called

Author: segunadebayo

.changeset/silent-melons-doubt.md

@@ -0,0 +1,11 @@
+---
+"@zag-js/slider": patch
+---
+
+Fix issue where programmatic value changes do not trigger the `onValueChangeEnd` callback. This affects the following
+API methods:
+
+- `slider.setThumbValue(index, value)`
+- `slider.setValue(value)`
+- `slider.increment(index)`
+- `slider.decrement(index)`

packages/machines/slider/src/slider.machine.ts

@@ -133,17 +133,17 @@ export const machine = createMachine<SliderSchema>({
     SET_VALUE: [
       {
         guard: "hasIndex",
-        actions: ["setValueAtIndex"],
+        actions: ["setValueAtIndex", "invokeOnChangeEnd"],
       },
       {
-        actions: ["setValue"],
+        actions: ["setValue", "invokeOnChangeEnd"],
       },
     ],
     INCREMENT: {
-      actions: ["incrementThumbAtIndex"],
+      actions: ["incrementThumbAtIndex", "invokeOnChangeEnd"],
     },
     DECREMENT: {
-      actions: ["decrementThumbAtIndex"],
+      actions: ["decrementThumbAtIndex", "invokeOnChangeEnd"],
     },
   },