[Snyk] Security upgrade ruby from 2.5.1-alpine to 2.6.9-alpine#3

snyk-bot wants to merge 1 commit intomasterlirantal/docker-travis-cli:masterfrom

snyk-fix-9b15e4dabe21c7fc4e871835fd930d14lirantal/docker-travis-cli:snyk-fix-9b15e4dabe21c7fc4e871835fd930d14Copy head branch name to clipboard