fix(VTimePicker): fix types for emit events

[SonTT19]

Description

fixes #20085

Markup:

<template>
  <v-app>
    <v-container>
      <v-time-picker
        v-model="time"
        format="24hr"
        max="22:15"
        min="9:30"
        scrollable
      />
    </v-container>
  </v-app>
</template>

<script setup>
  import { ref } from 'vue'

  const time = ref()
</script>