chore: generate real cert

Signed-off-by: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>

Author: vitormattos

tests/integration/features/page/validate.feature

@@ -1,7 +1,6 @@
 Feature: page/validate
   Background: Make setup ok
-    Given run the command "config:app:set libresign authkey --value=dummy" with result code 0
-    And run the command "libresign:configure:openssl --cn test" with result code 0
+    Given run the command "libresign:configure:openssl --cn test" with result code 0
 
   Scenario Outline: Unauthenticated user can see sign page
     Given as user "admin"