A typo in the upgrade all command

[itzwolly]

Describe the bug
A typo in the 'upgrade all' command inside the WinGetPackageManager.cs.

To Reproduce
Steps to reproduce the behavior:

1. Go to WinGetPackageManager.cs
2. Go to line: 29
3. Observe => private const string _upgradeAllCmd = "upgrade --al --accept-source-agreementsl";

Expected behavior
Command should be: private const string _upgradeAllCmd = "upgrade --all --accept-source-agreements";

Screenshots
N/A

Package Version
v4.1.0

Additional context
N/A

[basicx-StrgV]

I released a patch (Version 4.1.1) containing a fix for this issue.

https://github.com/basicx-StrgV/WGet.NET/releases/tag/4.1.1