fix: Fix parameter type mismatch issue when using Milvus

[jsRuner]

Description

Fix parameter type mismatch issue when using Milvus

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

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Checklist:

• My code follows the style guidelines of this project
• I have already rebased the commits and make 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

[csunny]

@jsRuner Hi, Can you give the bug or error detail information?

[jsRuner]

@jsRuner Hi, Can you give the bug or error detail information?

When in a knowledge base conversation, use the configuration VECTOR_STORE.TYPE=Milvus
This problem will arise. The log is as follows

File "/Users/wuwenfu/workspace/python/DB-GPT/dbgpt/storage/vector_store/milvus_store.py", line 448, in similar_search_with_scores docs_and_scores = [ File "/Users/wuwenfu/workspace/python/DB-GPT/dbgpt/storage/vector_store/milvus_store.py", line 449, in <listcomp> Chunk( File "/Users/wuwenfu/anaconda3/envs/dbgpt_env/lib/python3.10/site-packages/pydantic/main.py", line 175, in __init__ self.__pydantic_validator__.validate_python(data, self_instance=self) pydantic_core._pydantic_core.ValidationError: 1 validation error for Chunk chunk_id Input should be a valid string [type=string_type, input_value=448558551467296374, input_type=int] For further information visit https://errors.pydantic.dev/2.7/v/string_type

[Aries-ckt]

r+

[fangyinc]

r+