fixup! CLDC-4204: Update row parser question titles to match form

fix sales log typo

Co-authored-by: Oscar Richardson <116292912+oscar-richardson-softwire@users.noreply.github.com>

app/services/bulk_upload/sales/year2026/row_parser.rb

@@ -10,7 +10,7 @@ class BulkUpload::Sales::Year2026::RowParser
     field_3: "What is the sale completion date? - year YY",
     field_4: "Which organisation owned this property before the sale?",
     field_5: "Which organisation is reporting this sale?",
-    field_6: "What is the CORE username of the account this sale log should be assigned to?",
+    field_6: "What is the CORE username of the account this sales log should be assigned to?",
     field_7: "What is the purchaser code?",
     field_8: "Is this a shared ownership or discounted ownership sale?",
     field_9: "What is the type of shared ownership sale?",