Sleep 20 seconds before assuming EOS is ready

continuousintegration/docker/ctafrontend/cc7/opt/run/bin/ctaeos-mgm.sh

@@ -189,7 +189,7 @@ fi
 # test EOS
 # eos slow behind us and we need to give it time to be ready
 # 5 secs is not enough
-  sleep 10
+  sleep 20
   eos -b node ls
   xrdcp /etc/group root://${eoshost}:/${EOS_TMP_DIR}/testFile