Fix announcement redirect

app/controllers/announcements_controller.rb

@@ -15,7 +15,7 @@ class AnnouncementsController < ApplicationController
       flash[:success] = t(:notice_successful_update)
     end
 
-    render action: 'edit'
+    redirect_to action: 'edit'
   end
 
   private

spec/controllers/announcements_controller_spec.rb

@@ -30,7 +30,7 @@ describe AnnouncementsController, type: :controller do
     end
 
     it 'edits the announcement' do
-      expect(response).to render_template 'edit'
+      expect(response).to redirect_to action: :edit
       expect(controller).to set_flash[:success].to I18n.t(:notice_successful_update)
     end
   end