[Snyk] Security upgrade alpine from 3.12.0 to 3.21.2#240

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tsmithv11 wants to merge 1 commit intomainfrom snyk-fix-b22b6c001ecdde2cefc646d59b8ecbf0

+1-1

Commits on Jan 16, 2025

fix: microservices-demo/deploy/kubernetes/Dockerfile to reduce vulnerabilities
snyk-bot
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