INTPYTHON-834 Allow additional arguments to vector_search_index_definition

[barnuri]

This pull request adds support for passing additional vector index options to the vector search index definition and related functions in pymongo_search_utils/index.py. This enhancement makes it easier to customize vector index creation and updates with extra parameters.

Vector index customization

• Added a new vector_index_options parameter to the vector_search_index_definition, create_vector_search_index, and update_vector_search_index functions to allow passing extra options for vector index configuration. [1] [2] [3]
• Updated the construction of the vector index definition to include any provided options from vector_index_options, enabling more flexible index setup.
• Ensured that the new vector_index_options parameter is properly forwarded when creating or updating vector search indexes, maintaining consistency and ease of use. [1] [2]

[blink1073]

Thanks again for the PR! Can you please add a test to https://github.com/mongodb-labs/pymongo-search-utils/blob/main/tests/test_index.py?

[barnuri]

@blink1073 done

[blink1073]

We're getting one failure:

FAILED tests/test_index.py::test_create_fulltext_search_index_multiple_fields - AssertionError: assert {'indexOption...pe': 'string'} == [{'type': 'string'}]
  
  Full diff:
  - [
  -     {
  + {
  +     'indexOptions': 'offsets',
  +     'norms': 'include',
  +     'store': True,
  -         'type': 'string',
  ? ----
  +     'type': 'string',
  + }
  -     },
  - ]