docs: flag Multi Tenancy as a MongoDBAtlasVectorStore supported feature (#33469)

- **Description:** 
- Change the docs flag for v0.3 branch to list Multi-tenancy as a
MongoDBAtlasVectorStore supported feature
  - **Issue:** N/A
  - **Dependencies:** None

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from the root of the package(s) you've modified. **We will not consider
a PR unless these three are passing in CI.** See [contribution
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- Changes should be backwards compatible.
- Make sure optional dependencies are imported within a function.

docs/scripts/vectorstore_feat_table.py

@@ -204,7 +204,7 @@ def get_vectorstore_table():
             "similarity_search_with_score": True,
             "asearch": True,
             "Passes Standard Tests": True,
-            "Multi Tenancy": False,
+            "Multi Tenancy": True,
             "Local/Cloud": "Local",
             "IDs in add Documents": True,
         },