[Snyk] Security upgrade sequelize from 4.44.4 to 6.19.1#4

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snyk-bot wants to merge 1 commit intomasterfrom snyk-fix-5a081a4df061e4e79c24c4e02522c995

+86-101

Commits on Jul 7, 2022

fix: package.json & package-lock.json to reduce vulnerabilities
snyk-bot
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