Fix location show form owner inside uninstall package

[chuongmep]

Purpose

this is a problem same with #12540, Fix location show message form uninstall package.
Before :

After fixed

Declarations

Check these if you believe they are true

• The codebase is in a better state after this PR
• Is documented according to the standards
• The level of testing this PR includes is appropriate
• User facing strings, if any, are extracted into *.resx files
• All tests pass using the self-service CI.
• Snapshot of UI changes, if any.
• Changes to the API follow Semantic Versioning and are documented in the API Changes document.
• This PR modifies some build requirements and the readme is updated

Release Notes

Always initialize uninstall package dialog with the right owner window

Reviewers

@QilongTang

FYIs

[QilongTang]

Running self CI at https://master-15.jenkins.autodesk.com/view/DYN/job/DYN-DevCI_Self_Service/935/

[QilongTang]

1. Failed : DynamoCoreWpfTests.PackageManagerUITests.PackageManagerUninstallCommand
   Expected: ScheduledForUnload
   But was: None
   at NUnit.Framework.Assert.That(Object actual, IResolveConstraint expression, String message, Object[] args)
   at DynamoCoreWpfTests.PackageManagerUITests.PackageManagerUninstallCommand() in E:\Builds\chuongmep_Dynamo\owner_deletepackage\Dynamo\test\DynamoCoreWpfTests\PackageManagerUITests.cs:line 840

[QilongTang]

@chuongmep Fixed test for you

[QilongTang]

@chuongmep FYI:https://github.com/DynamoDS/Dynamo/wiki/Writing-Unit-Test-Libraries-for-Dynamo

[chuongmep]

@chuongmep FYI:https://github.com/DynamoDS/Dynamo/wiki/Writing-Unit-Test-Libraries-for-Dynamo
Many thanks @QilongTang help me add test, may be I will down to VS2019 because NUnit 2 Test Adapter not yet in VS2022