Log new versions as they are found

• I have searched for similar issues
• I am using the latest version of npm-check-updates
• I am using node >= 10.17

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It would be nice if new versions of packages would be printed out as they are found. I have tried silly mode, but even then I can only see new versions once the entire process was successful.

Background: For better or worse, I'm am using a not only slow but also unstable registry. This means ncu -u often times out (even when increasing the timeout by 10x) or fails for some other reason late in the process. This means I don't have any new versions at all even though ncu made 90% progress.

By printing new versions as they are discovered, I could at least fix some of the dependencies manually :)