FIX: Don't enqueue topics if the user can't create them

Co-authored-by: Vinoth Kannan <vinothkannan@vinkas.com>

spec/components/new_post_manager_spec.rb

@@ -104,6 +104,24 @@ describe NewPostManager do
       end
     end
 
+    context 'with a high approval post count and secure category' do
+      it 'does not create topic' do
+        SiteSetting.approve_post_count = 100
+        user = Fabricate(:user)
+        category_group = Fabricate(:category_group, permission_type: 2)
+        group_user = Fabricate(:group_user, group: category_group.group, user_id: user.id)
+
+        manager = NewPostManager.new(
+          user,
+          raw: 'this is a new topic',
+          title: "Let's start a new topic!",
+          category: category_group.category_id
+        )
+
+        expect(manager.perform.errors["base"][0]).to eq(I18n.t("js.errors.reasons.forbidden"))
+      end
+    end
+
     context 'with a high trust level setting' do
       before do
         SiteSetting.approve_unless_trust_level = 4