I have this exact problem right now with Construct 3, the strangest thing is that in Construct 2, building the APK with Cordova CLI, I just change the version code in XML and send the apk without problems, but I have no option in Construct 3 to do this edition and I need to wait for the good will of the developers of the tool.
Look, we are just days away from some APKs disappearing from Google Play.
Will C3 developers let all their customers down?