[Snyk] Security upgrade debian from 9.5-slim to 9-slim#174

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baby636 wants to merge 1 commit intomainfrom snyk-fix-c8803af513e2b9a77868e1724e021985

+1-1

Commits on May 16, 2022

fix: content/actions/creating-actions/dockerfile-support-for-github-actions.md to reduce vulnerabilities
snyk-bot
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