fix: aembed_query type error

[utopia2077]

Description

The previous implementation incorrectly used the await keyword directly on the indexing operation, which caused a TypeError when enable_summary="True" was set. like

2025-03-11 19:14:25 hostname dbgpt_serve.rag.service.service[788143] ERROR document embedding, failed:74.txt, RetryError[<Future at 0x7b5c86f44f90 state=finished raised TypeError>]

The fix involves awaiting the result of the asynchronous aembed_documents method before indexing. This change ensures that the asynchronous operation is handled correctly, preventing the error.

How Has This Been Tested?

Pass!

Snapshots:

Include snapshots for easier review.

Checklist:

• My code follows the style guidelines of this project
• I have already rebased the commits and made the commit message conform to the project standard.
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• Any dependent changes have been merged and published in downstream modules

[fangyinc]

LGTM.

[yyhhyyyyyy]

LGTM.