Bump System.IO.Packaging

Bumps [System.IO.Packaging](https://github.com/dotnet/runtime) from 5.0.0-preview.2.20160.6 to 5.0.0-preview.4.20217.4.
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](https://github.com/dotnet/runtime/commits)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

src/Microsoft.PowerShell.SDK/Microsoft.PowerShell.SDK.csproj

@@ -18,7 +18,7 @@
     <!-- the following package(s) are from https://github.com/dotnet/fxdac -->
     <PackageReference Include="System.Data.SqlClient" Version="4.8.1" />
     <!-- the following package(s) are from https://github.com/dotnet/corefx -->
-    <PackageReference Include="System.IO.Packaging" Version="5.0.0-preview.3.20214.6" />
+    <PackageReference Include="System.IO.Packaging" Version="5.0.0-preview.4.20217.4" />
     <PackageReference Include="System.Net.Http.WinHttpHandler" Version="5.0.0-preview.3.20214.6" />
     <PackageReference Include="System.Text.Encodings.Web" Version="5.0.0-preview.3.20214.6" />
     <!-- the following package(s) are from https://github.com/dotnet/wcf -->