Add missing Ubuntu universe repositories

Signed-off-by: Dominik Gedon <dominik.gedon@suse.com>

testsuite/features/build_validation/reposync/srv_sync_all_products.feature

@@ -440,7 +440,7 @@ Scenario: Add SUSE Linux Enterprise Server 15 SP5
 @uyuni
 @ubuntu1804_minion
   Scenario: Add Ubuntu 18.04
-    When I use spacewalk-common-channel to add channel "ubuntu-1804-pool-amd64-uyuni ubuntu-1804-amd64-main-uyuni ubuntu-1804-amd64-main-updates-uyuni ubuntu-1804-amd64-main-security-uyuni ubuntu-1804-amd64-uyuni-client" with arch "amd64-deb"
+    When I use spacewalk-common-channel to add channel "ubuntu-1804-pool-amd64-uyuni ubuntu-1804-amd64-main-uyuni ubuntu-1804-amd64-main-updates-uyuni ubuntu-1804-amd64-main-security-uyuni ubuntu-1804-amd64-universe-uyuni ubuntu-1804-amd64-universe-updates-uyuni ubuntu-1804-amd64-universe-security-uyuni ubuntu-1804-amd64-uyuni-client" with arch "amd64-deb"
 
 @susemanager
 @ubuntu2004_minion
@@ -456,7 +456,7 @@ Scenario: Add SUSE Linux Enterprise Server 15 SP5
 @uyuni
 @ubuntu2004_minion
   Scenario: Add Ubuntu 20.04
-    When I use spacewalk-common-channel to add channel "ubuntu-2004-pool-amd64-uyuni ubuntu-2004-amd64-main-uyuni ubuntu-2004-amd64-main-updates-uyuni ubuntu-2004-amd64-main-security-uyuni ubuntu-2004-amd64-uyuni-client" with arch "amd64-deb"
+    When I use spacewalk-common-channel to add channel "ubuntu-2004-pool-amd64-uyuni ubuntu-2004-amd64-main-uyuni ubuntu-2004-amd64-main-updates-uyuni ubuntu-2004-amd64-main-security-uyuni ubuntu-2004-amd64-universe-uyuni ubuntu-2004-amd64-universe-updates-uyuni ubuntu-2004-amd64-universe-security-uyuni ubuntu-2004-amd64-universe-backports-uyuni ubuntu-2004-amd64-uyuni-client" with arch "amd64-deb"
 
 @susemanager
 @ubuntu2204_minion