fix: add LIMIT clause to product category updates for 'Skafferi' to ensure single result

db/seeds/seed_all.sql

@@ -776,6 +776,7 @@ UPDATE `Product` SET `categoryId` = (
   JOIN `Category` c2 ON c2.parentId = c1.id AND c2.name = 'Bakning'
   JOIN `Category` c3 ON c3.parentId = c2.id AND c3.name = 'Baktillbehör'
   WHERE c1.name = 'Skafferi' AND c1.parentId IS NULL
+  LIMIT 1
 ) WHERE `name` IN ('Mjöl', 'Socker');
 
 -- Skafferi > Konserver & burkar > Fruktkonserver
@@ -784,4 +785,5 @@ UPDATE `Product` SET `categoryId` = (
   JOIN `Category` c2 ON c2.parentId = c1.id AND c2.name = 'Konserver & burkar'
   JOIN `Category` c3 ON c3.parentId = c2.id AND c3.name = 'Fruktkonserver'
   WHERE c1.name = 'Skafferi' AND c1.parentId IS NULL
+  LIMIT 1
 ) WHERE `name` IN ('Marmelad');