feat(ActionSheet): add cancel slot (#8333)

src/action-sheet/test/__snapshots__/index.spec.ts.snap

@@ -5,6 +5,14 @@ exports[`should allow to custom close icon with closeIcon prop 1`] = `
 </i>
 `;
 
+exports[`should render cancel slot correctly 1`] = `
+<button type="button"
+        class="van-action-sheet__cancel"
+>
+  Custom Cancel
+</button>
+`;
+
 exports[`should render default slot correctly 1`] = `
 <transition-stub>
   <div class="van-overlay">

src/action-sheet/test/index.spec.ts

@@ -182,6 +182,19 @@ test('should render description correctly', () => {
   ).toMatchSnapshot();
 });
 
+test('should render cancel slot correctly', () => {
+  const wrapper = mount(ActionSheet, {
+    props: {
+      show: true,
+    },
+    slots: {
+      cancel: () => 'Custom Cancel',
+    },
+  });
+
+  expect(wrapper.find('.van-action-sheet__cancel').html()).toMatchSnapshot();
+});
+
 test('should render description slot when match snapshot', () => {
   const wrapper = mount(ActionSheet, {
     props: {