We need to update the PRISM.Unity NuGet package in our C# project to the latest version to ensure we are using the most recent features, improvements, and security patches. This update is essential for maintaining the project's stability and compatibility with the latest libraries and frameworks.

Expected Behavior:

The project should successfully update the PRISM package without any errors. After the update, the project should function as intended, utilizing the latest version of the PRISM.Unity library.