[Snyk] Security upgrade json2csv from 3.11.1 to 4.0.0#40

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snyk-bot wants to merge 1 commit intomasterfrom snyk-fix-e16c0ee750ba0872eb8627d42811bb96

+56-66

Commits on Aug 9, 2020

fix: scripts/genetic_backtester/package.json & scripts/genetic_backtester/package-lock.json to reduce vulnerabilities
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