style: add newline at end of bogo_sort.nim

Author: ibrahimelnemr

sorts/bogo_sort.nim

@@ -38,4 +38,4 @@ when isMainModule:
     test "sort an array of strings":
       var arr = @["c", "a", "b"]
       bogoSort(arr)
-      check isSorted(arr)
+      check isSorted(arr)