[Snyk] Security upgrade alpine from 3.14.1 to 3.21.0#66

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soc-service-agent wants to merge 1 commit intomainfrom snyk-fix-5c90744756859ca5b947d25567f087a1

+1-1

Commits on Dec 10, 2024

fix: dockerfiles/packagecloud-pruner/Dockerfile to reduce vulnerabilities
snyk-bot
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