Updated FFImageLoading to latest stable NuGet.

Author: David Britch

src/Mobile/eShopOnContainers/eShopOnContainers.Core/project.json

@@ -11,8 +11,8 @@
     "SlideOverKit": "2.1.4",
     "Splat": "1.6.2",
     "Xam.Plugins.Settings": "2.6.0.12-beta",
-    "Xamarin.FFImageLoading": "2.2.6-pre-256",
-    "Xamarin.FFImageLoading.Forms": "2.2.6-pre-256",
+    "Xamarin.FFImageLoading": "2.2.9",
+    "Xamarin.FFImageLoading.Forms": "2.2.9",
     "Xamarin.Forms": "2.3.4.231",
     "Xamarin.Forms.Pages": "2.3.4.231",
     "Xamarin.Forms.Theme.Base": "1.0.0.43-pre1",