[Snyk] Upgrade typescript from 5.8.3 to 5.9.2#17

jcdc-bot wants to merge 1 commit intodev/v16jcdcdev/Umbraco.Community.SimpleTrees:dev/v16from

snyk-upgrade-3cd4e5c8e6a02f8a27095809fff784b8jcdcdev/Umbraco.Community.SimpleTrees:snyk-upgrade-3cd4e5c8e6a02f8a27095809fff784b8Copy head branch name to clipboard