[Snyk] Security upgrade ruby from 2.6.0 to 2.7#26

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alexeisnyk wants to merge 1 commit intomasterfrom snyk-fix-c415fc4d89dd9071658f3eba663fea5b

+2-2

Commits on Jun 16, 2022

fix: app/Dockerfile to reduce vulnerabilities
snyk-bot
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