community[patch]: Replace `filters` argument to `filter` in DatabricksVectorSearch (#24530)
The
[DatabricksVectorSearch](https://github.com/langchain-ai/langchain/blob/master/libs/community/langchain_community/vectorstores/databricks_vector_search.py#L21)
class exposes similarity search APIs with argument `filters`, which is
inconsistent with other VS classes who uses `filter` (singular). This PR
updates the argument and add alias for backward compatibility.
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Signed-off-by: B-Step62 <yuki.watanabe@databricks.com>