Automated Functional test for jsonapi_search_api module integration

Problem/Motivation

Elasticsearch Connector mentions that we integrate with the JSON:API Search API module → on the project page. We also now have a manual test in our documentation for Developing the JSON:API Search API module integration → .

We should make sure this integration does not regress!

Proposed resolution

See if there are any existing automated tests for the JSON:API Search API module.

Add "drupal/jsonapi_search_api": "^1" to to Elasticsearch Connector's "require-dev".

Transform the manual test in our documentation → into an automated test.

Once merged, update the documentation (likely, many of the Setup steps will no longer be necessary).

Remaining tasks

1. Write a patch
2. Review and feedback
3. RTBC and feedback
4. Commit
5. Update documentation

User interface changes

None.

API changes

None.

Data model changes

None.