Swallow provisioned package errors

[JohnMcPMS]

Fixes #4410

Change

Catch errors coming from FindProvisionedPackages and ignore them. This is most likely to happen when the caller is not elevated.

Validation

> winget install notepad++.notepad++ --scope machine
Failed to open the predefined source; please report to winget maintainers.
An unexpected error occurred while executing the command:
0x80070005 : Access is denied.

> wingetdev install notepad++.notepad++ --scope machine
Found Notepad++ [Notepad++.Notepad++] Version 8.8.3
This application is licensed to you by its owner.
Microsoft is not responsible for, nor does it grant any licenses to, third-party packages.
Downloading https://github.com/notepad-plus-plus/notepad-plus-plus/releases/download/v8.8.3/npp.8.8.3.Installer.x64.exe
  ██████████████████████████████  6.52 MB / 6.52 MB
Successfully verified installer hash
Starting package install...

Microsoft Reviewers: Open in CodeFlow

[jantari]

You are saving this project, tyvm