[Snyk] Security upgrade @angular/cli from 9.0.3 to 9.1.12#6

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snyk-bot wants to merge 1 commit intomasterfrom snyk-fix-db0fb7be94e40397f9b769b7ec2493e8

+534-196

Commits on Jul 28, 2020

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