feat(goods-action): add size props of goods-action-button

packages/goods-action-button/index.ts

@@ -11,6 +11,10 @@ VantComponent({
   props: {
     text: String,
     color: String,
+    size: {
+      type: String,
+      value: 'normal',
+    },
     loading: Boolean,
     disabled: Boolean,
     plain: Boolean,

packages/goods-action-button/index.wxml

@@ -3,6 +3,7 @@
   id="{{ id }}"
   lang="{{ lang }}"
   type="{{ type }}"
+  size="{{ size }}"
   color="{{ color }}"
   plain="{{ plain }}"
   loading="{{ loading }}"