fix(for_tiers): do not update for_tiers column to render the form. otherwise user could switch to dossier.for_tiers without filling mandataire required fields when he updates his identity

app/components/dossiers/individual_form_component/individual_form_component.html.haml

@@ -1,4 +1,5 @@
 = form_for @dossier, url: update_identite_dossier_path(@dossier), html: { id: 'identite-form', class: "form",  "data-controller" => "for-tiers" } do |f|
+  = f.hidden_field :for_tiers
   - if for_tiers?
     .fr-alert.fr-alert--info.fr-mb-2w
       %p.fr-notice__text

app/controllers/users/dossiers_controller.rb

@@ -139,7 +139,7 @@ module Users
       respond_to do |format|
         format.html
         format.turbo_stream do
-          @dossier.update_columns(params.require(:dossier).permit(:for_tiers).to_h)
+          @dossier.for_tiers = params[:dossier][:for_tiers]
         end
       end
     end