add test about standalone openmldb api lib

OK, but we should test that, standalone openmldb api lib can work. May be we should test in other places, e.g. a standalone cpp test with onebox cluster, or docker-compose test. Let's create a issue about it.

_Originally posted by @vagetablechicken in https://github.com/4paradigm/OpenMLDB/pull/3064#discussion_r1109262603_

The issue is about testing the standalone OpenMLDB API library. Look for existing tests involving onebox clusters or docker-compose in the repository. Determine where to add a new test—possibly in a standalone C++ test suite or a docker-compose test setup. Check the linked pull request #3064 for context on what needs to be validated. The goal is to ensure the API library works independently of the main application.

Written by the indexing model from the issue text.