v0.8.0

• Add --using and --database options to the CLI to respectively specify which
  OpenSearch and database connection to use (#87).

BREAKING CHANGES:

• django_opensearch_dsl.documents.Document.get_queryset now take an optional alias argument to specify which
  database connection to use.
• django_opensearch_dsl.documents.Document.get_indexing_queryset now take an optional alias argument to specify
  which database connection to use.