fix(quickbooks): describe the refund receipt update as sparse

The update path now posts a sparse body directly instead of read-merge-write,
per RefundReceipt::UPDATE 'Sparse update a refund receipt'. The LLM-facing tool
description still claimed a full update.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RB5M2gk7zZgGomnQqr7WRB

Author: waleedlatif1

apps/sim/tools/quickbooks/update_refund_receipt.ts

@@ -17,7 +17,7 @@ export const quickbooksUpdateRefundReceiptTool: InternalToolConfig<
 > = {
   id: 'quickbooks_update_refund_receipt',
   name: 'QuickBooks Update Refund Receipt',
-  description: 'Read, merge, and full-update a refund receipt using its current sync token',
+  description: 'Sparse-update a refund receipt using its current sync token',
   version: '1.0.0',
   params: {
     accessToken: {