Make several audio datasets streamable
<s>Needs https://github.com/huggingface/datasets/pull/3129 to be merged first</s>

Make those audio datasets streamable:
- [x] common_voice
- [x] openslr
- [x] vivos
- [x] librispeech_asr <s>(still has some issues to read FLAC)</s> *actually it's ok*
- [ ] <s>multilingual_librispeech (yet to be converted)</S> *TODO in a separate PR*