fix: slider type warning, close #5289

Author: tangjinzhou

components/vc-slider/src/Range.tsx

@@ -66,6 +66,7 @@ const Range = defineComponent({
     ariaLabelledByGroupForHandles: [],
     ariaValueTextFormatterGroupForHandles: [],
   }),
+  emits: ['beforeChange', 'afterChange', 'change'],
   displayName: 'Range',
   data() {
     const { count, min, max } = this;

components/vc-slider/src/Slider.tsx

@@ -24,6 +24,7 @@ const Slider = defineComponent({
     ariaValueTextFormatterForHandle: String,
     startPoint: Number,
   },
+  emits: ['beforeChange', 'afterChange', 'change'],
   data() {
     const defaultValue = this.defaultValue !== undefined ? this.defaultValue : this.min;
     const value = this.value !== undefined ? this.value : defaultValue;