Clear text traffic to localhost for AdColony

I am testing out my integration with AdColony and I am getting a warning about having clear text traffic disabled. So as I understand it AdColony SDK needs clear text traffic to be enabled for localhost, to buffer ads (maybe?).
I am no longer able to edit that in network_security_config.xml and use it in the AndroidManifest.xml (as explained here under Android Changes) and I don’t want to enable clear text traffic for all traffic by using this:

<?xml version="1.0" encoding="utf-8"?>
<manifest ...>
    <application
        ...
        android:usesCleartextTraffic="true"
        ...>
        ...
    </application>
</manifest>

How do I enable clear text traffic only for localhost?
Maybe it should be possible to configure that for the AdColony adapter?

Editor version 2021.3.1f1

Same question here, anybody?

We will take a look if we can find this answer internally, but since this is a question specifically for AdColony, we recommend reaching out to them - thanks!