[Snyk] Security upgrade node-sass from 4.13.0 to 5.0.0#28

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snyk-bot wants to merge 1 commit intomasterfrom snyk-fix-57e15f0ece1838eeaf9cdf3adcb3b97c

+338-291

Commits on Aug 4, 2021

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