[Snyk] Security upgrade alpine from 3.18.0 to 3.21.0#611

ksatchit wants to merge 1 commit intomasterlitmuschaos/test-tools:masterfrom

snyk-fix-ee75c865408f81f12d011d67c8282d89litmuschaos/test-tools:snyk-fix-ee75c865408f81f12d011d67c8282d89Copy head branch name to clipboard