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Thanks for the head's up! I imagine it's because it's a relatively new "program" so there's no reputation for the scanner to make an assessment off of, so it assumes the worst.

heuristics basically guess whether or not something is malicious based on what the program does, false positives are pretty common

This report might help you see what the antivirus thinks is suspicious, though obviously this is from an entirely different company:

https://www.hybrid-analysis.com/sample/4535aa2732403ada9d8a09032836d8fc4920407758b5a6bac5557fca36c1b2e9?environmentId=4