integrate OpenSearch

[drjova]

• [x] Continue @ErnestaP's https://github.com/inspirehep/backoffice/pull/34/ and integrate OpenSearch, @ErnestaP could you please check with @DonHaul?
  • [ ] /search/workflows endpoint should be added with pagination, size and order parameters more info can be found https://django-elasticsearch-dsl-drf.readthedocs.io/en/0.18/quick_start.html#installation
  • [ ] deploy opensearch on dev env
    • [ ] we might need to add the opensearch creds to the backend, @jimil749 could help us with that
• [x] align with @karolina-siemieniuk-morawska about the search endpoints and names of the parameters for pagination, size and order
• [x] connect backend and ui on dev envs (this might need to add UI to the 'CORS` setting