[Snyk] Security upgrade alpine from 3.10 to 3.14#21

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snyk-bot wants to merge 1 commit intopingcap/provider-gcpfrom snyk-fix-dc207541d43346a80f47f8f664ecab45

+1-1

Commits on Nov 20, 2021

fix: docker/Dockerfile to reduce vulnerabilities
snyk-bot
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