chore(SelectMenu): add required input only when needed

Author: benjamincanac

src/runtime/components/forms/SelectMenu.vue

@@ -11,7 +11,14 @@
     :class="ui.wrapper"
     @update:model-value="onUpdate"
   >
-    <input :value="modelValue" :required="required" class="absolute inset-0 w-px opacity-0 cursor-default" tabindex="-1" aria-hidden="true">
+    <input
+      v-if="required"
+      :value="modelValue"
+      :required="required"
+      class="absolute inset-0 w-px opacity-0 cursor-default"
+      tabindex="-1"
+      aria-hidden="true"
+    >
 
     <component
       :is="searchable ? 'ComboboxButton' : 'ListboxButton'"