[Snyk] Security upgrade alpine from 3.4 to 3.12.12#31

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snyk-bot wants to merge 1 commit intomasterfrom snyk-fix-4c5b46fa512174048414f06447b4ca48

+1-1

Commits on Aug 8, 2022

fix: ContainerCloud/images/logstash/Dockerfile to reduce vulnerabilities
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