Is there a way to get a refresh token from OAuth2 without user input/verification?

I've made a script that runs on the Google Ads API. The project on console.cloud.google.com is configured as "External" and "In Testing". The script I'm talking about needs to be run daily on a cron job. Issue is, every week I have to get a new refresh token manually, which is unnecessary in my opinion. So, is there a way to get a new refresh token without needing a user pressing "Continue" and "Accept", i.e. verifying that they allow access to Google Ads? Or does that only happen when I Publish my app on console.cloud.google.com?

So far, I either put the refresh token into the script and it works or (in another script) I use the refresh token to cURL into https://oauth2.googleapis.com/token to get an access token.