fix(VListItem): remove aria-selected on VListItem

[AllanOcelot]

Description

I have removed the attribute 'aria-selected' from '/components/VList/VListItem.tsx' to resolve #20666 .
It is marked as good first issue, and I wanted to get familiar with the vuetify dev environment, to contribute in future.

Playground file to replicate

<template>
  <v-app>
    <v-container>
      <v-list lines="one">
        <v-list-item
          v-for="n in 3"
          :key="n"
          :title="'Item ' + n"
          subtitle="Lorem ipsum dolor sit amet consectetur adipisicing elit"
        ></v-list-item>
      </v-list>
    </v-container>
  </v-app>
</template>

<script>
  export default {
    name: 'Playground',
    setup () {
      return {
        //
      }
    },
  }
</script>

[AllanOcelot]

I was not aware there was a naming convention for PR's - apologies !

[KaelWD]

Thanks for your contribution, this is still needed for selectable items though.