[Snyk] Security upgrade alpine from 3.9 to 3.21.2#27

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crashdump wants to merge 1 commit intomasterfrom snyk-fix-e2554a7e34946284dae29b79276f7848

+1-1

Commits on Jan 9, 2025

fix: docker/Dockerfile.flux to reduce vulnerabilities
snyk-bot
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