Added warning about Known Limitation: Hanging INSERT, Draft, LargeBinary, HDB (#2304)

Added a warning about: Hanging INSERTs of Drafts with LargeBinary fields
when using HDB.
This is internally tracked in cds node item 2547. 

I am uncertain whether this is the right spot to put this: I think it
should go into the node section, since it only concerns node. The topic
seems to be too niche for the general troubleshooting section.
Personally, I would associate the symptom with "Draft" rather than
"cds.Services > Class cds.DatabaseService" - and AFAIK `INSERT`s should
only take place during handling of the `NEW` event.

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Co-authored-by: René Jeglinsky <rene.jeglinsky@sap.com>

Author: PDT42

node.js/fiori.md

@@ -67,6 +67,10 @@ The `NEW` event is triggered when the user created a new draft.
 As a result `MyEntity.drafts` is created in the database.
 You can modify the initial draft data in a `before` handler.
 
+:::warning Known Limitation
+With the [`hdb` SAP HANA driver](https://www.npmjs.com/package/hdb), trying to `INSERT` draft entities with fields that use the [`LargeBinary` type](../cds/types#core-built-in-types) will cause a deadlock.
+The known workaround is to [configure your CAP app](../guides/databases/hana#setup-configuration) to use the [`hana-client` SAP HANA driver](https://www.npmjs.com/package/@sap/hana-client) instead.
+:::
 
 ### `EDIT`