Add constraint to id param for NetworkPoliciesController

This change fixes the bug while trying to update
Cilium policies. The reason for the bug was that rails does not
accept dots in routes by default for id params.
Changelog: fixed
EE: true

ee/config/routes/project.rb

@@ -53,7 +53,7 @@ constraints(::Constraints::ProjectUrlConstrainer.new) do
         resources :audit_events, only: [:index]
 
         namespace :security do
-          resources :network_policies, only: [:index, :create, :update, :destroy] do
+          resources :network_policies, only: [:index, :create, :update, :destroy], constraints: { id: %r{[^/]+} } do
             get :summary, on: :collection
           end
 

ee/spec/routing/project_routing_spec.rb

@@ -82,4 +82,16 @@ RSpec.describe 'EE-specific project routing' do
       end
     end
   end
+
+  describe Projects::Security::NetworkPoliciesController, 'routing' do
+    where(:id) do
+      %w[test.1.2 test-policy test:policy]
+    end
+
+    with_them do
+      it "to #update" do
+        expect(put("/gitlab/gitlabhq/-/security/network_policies/#{id}")).to route_to('projects/security/network_policies#update', namespace_id: 'gitlab', project_id: 'gitlabhq', id: id)
+      end
+    end
+  end
 end