fix(Google Sheets Node): Prevent erroring on zero sheet search results (#7957)

## Summary
https://n8nio.sentry.io/issues/4695063783

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packages/nodes-base/nodes/Google/Sheet/v2/methods/listSearch.ts

@@ -51,7 +51,12 @@ export async function sheetsSearch(
 	this: ILoadOptionsFunctions,
 	_filter?: string,
 ): Promise<INodeListSearchResult> {
-	const { mode, value } = this.getNodeParameter('documentId', 0) as IDataObject;
+	const documentId = this.getNodeParameter('documentId', 0) as IDataObject | null;
+
+	if (!documentId) return { results: [] };
+
+	const { mode, value } = documentId;
+
 	const spreadsheetId = getSpreadsheetId(this.getNode(), mode as ResourceLocator, value as string);
 
 	const query = {