fix: improve SUM aggregate type detection logic

Author: laylatichy

packages/database/src/Builder/QueryBuilders/SelectQueryBuilder.php

@@ -461,7 +461,7 @@ private function aggregate(AggregateFunction $function, string $column): mixed
 
         return match ($function) {
             AggregateFunction::AVG => (float) $result,
-            AggregateFunction::SUM => filter_var(value: $result, filter: FILTER_VALIDATE_INT) !== false ? (int) $result : (float) $result,
+            AggregateFunction::SUM => str_contains(haystack: (string) $result, needle: '.') ? (float) $result : (int) $result,
             default => $result,
         };
     }