Remove redundant Assert-GitHubContext call in Get-GitHubApp function

src/functions/public/Apps/GitHub Apps/Get-GitHubApp.ps1

@@ -43,7 +43,7 @@
         $commandName = $MyInvocation.MyCommand.Name
         Write-Debug "[$commandName] - Start"
         $Context = Resolve-GitHubContext -Context $Context
-        Assert-GitHubContext -Context $Context -AuthType IAT, PAT, UAT
+
         if ([string]::IsNullOrEmpty($Owner)) {
             $Owner = $Context.Owner
         }