Update Create-MsixBundle.ps1

Author: yair100

.github/scripts/Create-MsixBundle.ps1

@@ -119,22 +119,17 @@ if ($AppInstallerUri -ne "" -and ($BuildMode -eq "Sideload" -or $BuildMode -eq "
         }
 
         # Determine architecture from the manifest Identity
-        $ns = @{ pkg = "http://schemas.microsoft.com/appx/manifest/foundation/windows10" }
-        $identity = $msixManifest.SelectSingleNode("/pkg:Package/pkg:Identity", (New-Object System.Xml.XmlNamespaceManager($msixManifest.NameTable)))
+        $nsmgr = New-Object System.Xml.XmlNamespaceManager($msixManifest.NameTable)
+        $nsmgr.AddNamespace("pkg", "http://schemas.microsoft.com/appx/manifest/foundation/windows10")
+        $identity = $msixManifest.SelectSingleNode("/pkg:Package/pkg:Identity", $nsmgr)
         if ($null -eq $identity) {
-            # Try without namespace
             $arch = "x64"
         } else {
-            $nsmgr = New-Object System.Xml.XmlNamespaceManager($msixManifest.NameTable)
-            $nsmgr.AddNamespace("pkg", "http://schemas.microsoft.com/appx/manifest/foundation/windows10")
-            $identityNode = $msixManifest.SelectSingleNode("/pkg:Package/pkg:Identity", $nsmgr)
-            $arch = $identityNode.GetAttribute("ProcessorArchitecture")
+            $arch = $identity.GetAttribute("ProcessorArchitecture")
             if ([string]::IsNullOrEmpty($arch)) { $arch = "x64" }
         }
 
         # Parse PackageDependency entries
-        $nsmgr = New-Object System.Xml.XmlNamespaceManager($msixManifest.NameTable)
-        $nsmgr.AddNamespace("pkg", "http://schemas.microsoft.com/appx/manifest/foundation/windows10")
         $deps = $msixManifest.SelectNodes("/pkg:Package/pkg:Dependencies/pkg:PackageDependency", $nsmgr)
 
         foreach ($dep in $deps) {