Publish release 5.18.0.143 to preview

_data/alpharelease.yml

@@ -1,5 +1,5 @@
-version: 5.18.0 Preview (5.18.0.142)
-mono_mac_url: https://download.mono-project.com/archive/5.18.0/macos-10-universal/MonoFramework-MDK-5.18.0.142.macos10.xamarin.universal.pkg
+version: 5.18.0 Preview (5.18.0.143)
+mono_mac_url: https://download.mono-project.com/archive/5.18.0/macos-10-universal/MonoFramework-MDK-5.18.0.143.macos10.xamarin.universal.pkg
 mono_windows_url: https://download.mono-project.com/archive/5.18.0/windows-installer/mono-5.18.0.142-gtksharp-2.12.45-win32-0.msi
 mono_windows64_url: https://download.mono-project.com/archive/5.18.0/windows-installer/mono-5.18.0.142-x64-0.msi
 gtksharp_windows_url: https://dl.xamarin.com/GTKforWindows/Windows/gtk-sharp-2.12.45.msi