[Snyk] Security upgrade debian from stretch-20210721-slim to stretch-20211201-slim#184

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snyk-fix-5ca540ccf13f59eae0a8a7534d2c64ba

Commits on Jan 18, 2022

fix: translations/ja-JP/content/actions/creating-actions/dockerfile-support-for-github-actions.md to reduce vulnerabilities
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