[Snyk] Security upgrade debian from 9.5-slim to stretch-20210329-slim#15

Merged

MarcelRaschke merged 1 commit intomainfrom snyk-fix-52d256e6c12e48d59a65ebedaa428d93

May 15, 2021

+1-1

Commits on Apr 11, 2021

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