Re-add ensure with else value

Author: EmandM

.yamato/desktop-standalone-tests.yml

@@ -78,6 +78,9 @@ desktop_standalone_test_{{ project.name }}_{{ platform.name }}_{{ backend }}_{{
     flavor: {{ platform.flavor }}
   variables:
     ECHO_SERVER_PORT: "7788"
+    # Ensure the DA codec tests will fail if they cannot connect to the echo-server
+    # The default is to ignore the codec tests if the echo-server fails to connect
+    ENSURE_CODEC_TESTS: {% if platform.name != "win" %} "true" {% else %} "" {% endif %}
 
   commands:
 # Platform specific UTR setup