software/slapos-sr-testing: fixup check backupserver, htmlvalidatorserver, jstestnode

See nexedi/slapos@ea8be7ce

software/slapos-sr-testing/software.cfg

@@ -212,8 +212,10 @@ tests =
   ${:extra}
 extra =
   ${slapos.cookbook-setup:setup}
+  ${slapos.test.backupserver-setup:setup}
   ${slapos.test.caddy-frontend-setup:setup}
   ${slapos.test.erp5-setup:setup}
+  ${slapos.test.htmlvalidatorserver-setup:setup}
   ${slapos.test.slapos-master-setup:setup}
   ${slapos.test.monitor-setup:setup}
   ${slapos.test.plantuml-setup:setup}
@@ -222,6 +224,7 @@ extra =
   ${slapos.test.re6stnet-setup:setup}
   ${slapos.test.seleniumserver-setup:setup}
   ${slapos.test.helloworld-setup:setup}
+  ${slapos.test.jstestnode-setup:setup}
   ${slapos.test.jupyter-setup:setup}
   ${slapos.test.nextcloud-setup:setup}
   ${slapos.test.turnserver-setup:setup}