Enhancement request - Please provide an OpenSearch connector

[ryn9]

Describe the problem you are trying to solve

Elastic made it latest libraries not work with OpenSearch

Describe the solution you'd like

Please provide an OpenSearch offramp, based off new libraries

Notes

Please have a look the blog post about client libraries available for OpenSearch: https://opensearch.org/blog/community/2021/08/community-clients/

[mfelsche]

First step would be to add an opensearch integration test in tremor-cli/tests/integration. It can be heavily based on the elastic test in there.

Whatever client library we then chose to use we should make sure it works for both.