[Snyk] Security upgrade alpine from 3.1 to 3.13.8#15

snyk-bot wants to merge 1 commit intomasterpozgo/docker-subgit:masterfrom

snyk-fix-6b69c956414dfd742a003577f4691093pozgo/docker-subgit:snyk-fix-6b69c956414dfd742a003577f4691093Copy head branch name to clipboard