feat(export.numbers): cast to float, otherwise it is implicitly casted

as string

app/models/exported_column.rb

@@ -14,15 +14,12 @@ class ExportedColumn
     [libelle, ExportedColumnFormatter.format(column:, champ_or_dossier:, format:), spreadsheet_architect_type]
   end
 
-  # see: https://github.com/westonganger/spreadsheet_architect/blob/771e2e5558fbf6e0cb830e881a7214fa710e49c3/lib/spreadsheet_architect.rb#L39
   def spreadsheet_architect_type
     case @column.type
     when :boolean
       :boolean
-    when :decimal
+    when :decimal, :integer
       :float
-    when :number
-      :integer
     when :datetime
       :time
     when :date