add Indonesian MT STS dataset

[henilp105]

This PR adds Indonesian dataset for STS task translated from STS English using Google Translate API.

HF link: https://huggingface.co/datasets/LazarusNLP/stsb_mt_id
Github link: https://github.com/LazarusNLP/indonesian-sentence-embeddings

Checklist

• Run tests locally to make sure nothing is broken using make test.
• Run the formatter to format the code using make lint.

Adding datasets checklist

Reason for dataset addition: It covers Indonesian language for STS task as the id/indonesian language was not available for STS. (https://huggingface.co/datasets/LazarusNLP/stsb_mt_id)

• I have run the following models on the task (adding the results to the pr). These can be run using the mteb -m {model_name} -t {task_name} command.
  • sentence-transformers/paraphrase-multilingual-MiniLM-L12-v2
  • intfloat/multilingual-e5-small
• I have checked that the performance is neither trivial (both models gain close to perfect scores) nor random (both models gain close to random scores).
• If the dataset is too big (e.g. >2048 examples), considering using self.stratified_subsampling() under dataset_transform()
• I have filled out the metadata object in the dataset file (find documentation on it here).
• Run tests locally to make sure nothing is broken using make test.
• Run the formatter to format the code using make lint.

CC: @KennethEnevoldsen @Muennighoff @LazarusNLP