Loosen Elasticsearch requirement

[stephantul]

Hi!

I'm currently using beir via MTEB in another project, and noticed that beir was installing a very specific version of the elasticsearch package, overwriting my (looser) requirements. I was wondering if there was a reason this was pinned so specifically, and whether it could be loosened. I think install_requires should be as loosely pinned as possible, to reduce installation errors.

Thanks! Stéphan

[thakur-nandan]

Hi @stephantul,

The reason for specifying this version was due to Elasticsearch updating its client mentioned in #58.