[Snyk] Security upgrade alpine from latest to 3.15.3#2

snyk-bot wants to merge 1 commit intomasterhttps-githubsup-com/powergate:masterfrom

snyk-fix-fdc500a65ba77ca10b8b3c3804dbb6f2https-githubsup-com/powergate:snyk-fix-fdc500a65ba77ca10b8b3c3804dbb6f2Copy head branch name to clipboard