Bump System.Net.Http from 4.0.0 to 4.3.4 in /Microsoft.Toolkit.Forms.UI.Controls#315

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dependabot/nuget/Microsoft.Toolkit.Forms.UI.Controls/System.Net.Http-4.3.4CommunityToolkit/Microsoft.Toolkit.Win32:dependabot/nuget/Microsoft.Toolkit.Forms.UI.Controls/System.Net.Http-4.3.4Copy head branch name to clipboard