fix:storage add collection bug (#2615)

Close #2595 
# Description
fix hybrid memory milvus create collection bug 

# How Has This Been Tested?

switch milvus for hybrid storage type.

# Snapshots:

Include snapshots for easier review.

# 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

packages/dbgpt-core/src/dbgpt/storage/vector_store/base.py

@@ -201,3 +201,7 @@ class VectorStoreBase(IndexStoreBase, ABC):
     def truncate(self) -> List[str]:
         """Truncate the collection."""
         raise NotImplementedError
+
+    def create_collection(self, collection_name: str, **kwargs) -> Any:
+        """Create the collection."""
+        raise NotImplementedError