[Snyk] Upgrade @umbraco-cms/backoffice from 15.4.2 to 15.4.3#153

jcdcdev merged 1 commit intodev/v15jcdcdev/Umbraco.Community.BackOfficeOrganiser:dev/v15from

snyk-upgrade-9ab59ec7273c3a152f0d20613d5208b0jcdcdev/Umbraco.Community.BackOfficeOrganiser:snyk-upgrade-9ab59ec7273c3a152f0d20613d5208b0Copy head branch name to clipboard