[Snyk] Upgrade com.thoughtworks.xstream:xstream from 1.4.5 to 1.4.21#28

appsectr wants to merge 1 commit intomainappsectr/WebGoat:mainfrom

snyk-upgrade-386ddc3bdda6af3b0e233e01e609bb0aappsectr/WebGoat:snyk-upgrade-386ddc3bdda6af3b0e233e01e609bb0aCopy head branch name to clipboard