fix(VTimePicker): emit when changing hour

[blalan05]

<template>
  <v-time-picker v-model="myTime" format="24hr" label="Pick A Time" />

  {{ myTime }}
</template>
<script setup lang="ts">
  import { ref } from 'vue'
  const myTime = ref(null)
</script>

[NickdeK]

Can this be reviewed and merged already? Seems like a small enough change the could help a lot of users.

[YournameITManoah]

+1