Update xamarin-android.yml

Author: maxim-lobanov

.github/workflows/xamarin-android.yml

@@ -9,5 +9,5 @@ jobs:
       - run: |
           cd xamarin-android/vs2019
           nuget restore XamarinAndroidVS2019.sln
-          directory=pwd
-          "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\MSBuild\Current\Bin\msbuild.exe" "$directory\XamarinAndroidVS2019\XamarinAndroidVS2019.csproj" /p:AndroidNdkDirectory="C:\Android\android-sdk\ndk-bundle" /p:configuration="Release" /t:PackageForAndroid
+          $directory=pwd
+          & C:\Program Files\Microsoft Visual Studio\2022\Enterprise\MSBuild\Current\Bin\msbuild.exe "$directory\XamarinAndroidVS2019\XamarinAndroidVS2019.csproj" /p:AndroidNdkDirectory="C:\Android\android-sdk\ndk-bundle" /p:configuration="Release" /t:PackageForAndroid