deps: Bump CommunityToolkit.Mvvm from 8.4.0 to 8.4.2#1

dependabot[bot] wants to merge 1 commit into

mainLayellie/StandbyAndTimer:mainfrom

dependabot/nuget/StandbyAndTimer/CommunityToolkit.Mvvm-8.4.2Layellie/StandbyAndTimer:dependabot/nuget/StandbyAndTimer/CommunityToolkit.Mvvm-8.4.2Copy head branch name to clipboard