[Snyk] Security upgrade firebase from 5.0.1 to 7.22.0#21

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snyk-bot wants to merge 1 commit intomasterfrom snyk-fix-0c5b8f10828e27978a7dd9c1cac7a01d

+3,292-3,467

Commits on Oct 2, 2020

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