Bump System.IO.Packaging from 4.5.0 to 4.6.0
Bump System.IO.Packaging from 4.5.0 to 4.6.0

Bumps [System.IO.Packaging](https://github.com/dotnet/corefx) from 4.5.0 to 4.6.0.
- [Release notes](https://github.com/dotnet/corefx/releases)
- [Commits](https://github.com/dotnet/corefx/commits)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
ppy/osu,peppy/osu,smoogipoo/osu,EVAST9919/osu,NeoAdonis/osu,ZLima12/osu,smoogipoo/osu,NeoAdonis/osu,johnneijzen/osu,peppy/osu-new,UselessToucan/osu,2yangk23/osu,peppy/osu,NeoAdonis/osu,2yangk23/osu,johnneijzen/osu,smoogipoo/osu,ZLima12/osu,UselessToucan/osu,smoogipooo/osu,peppy/osu,UselessToucan/osu,EVAST9919/osu,ppy/osu,ppy/osu