fix: Allow specification of api endpoint as fallback when token lacks permissions (#5879)

* fix: Allow direct specification of api_endpoint on oss

* Update astradb.py

* Update Vector Store RAG.json

* Add vector store rag template updates

* [autofix.ci] apply automated fixes

---------

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

src/backend/base/langflow/components/vectorstores/astradb.py

@@ -127,7 +127,9 @@ class AstraDBVectorStoreComponent(LCVectorStoreComponent):
             name="api_endpoint",
             display_name="API Endpoint",
             info="The API endpoint for the Astra DB instance.",
-            show=os.getenv("LANGFLOW_HOST") is not None,  # TODO: Clean up all examples of these
+            advanced=os.getenv("LANGFLOW_HOST") is None,  # TODO: Clean up all examples of these
+            refresh_button=True,
+            real_time_refresh=True,
         ),
         DropdownInput(
             name="database_name",