chore(CardElementLegacy): this tests old integrations without type work

Author: softbeehive

examples/CardElementLegacy.vue

@@ -1,14 +1,15 @@
 <template>
   <StripeElements
     v-if="stripeLoaded"
+    v-slot="{ elements }"
     :stripe-key="stripeKey"
     :instance-options="instanceOptions"
     :elements-options="elementsOptions"
     ref="elms"
     class="py-3"
   >
     <StripeElement
-      type="card"
+      :elements="elements"
       :options="cardOptions"
       ref="card"
     />