Bump Xamarin.Android.Support.v4 from 23.3.0 to 28.0.0.1

Bumps Xamarin.Android.Support.v4 from 23.3.0 to 28.0.0.1.

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

Sample/packages.config

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Xamarin.Android.Support.Animated.Vector.Drawable" version="23.3.0" targetFramework="monoandroid70" />
-  <package id="Xamarin.Android.Support.v4" version="23.3.0" targetFramework="monoandroid70" />
+  <package id="Xamarin.Android.Support.v4" version="28.0.0.1" targetFramework="monoandroid70" />
   <package id="Xamarin.Android.Support.v7.AppCompat" version="23.3.0" targetFramework="monoandroid70" />
   <package id="Xamarin.Android.Support.Vector.Drawable" version="23.3.0" targetFramework="monoandroid70" />
 </packages>

Xamarin.Android.ActivityController/packages.config

@@ -2,7 +2,7 @@
 <packages>
   <package id="Xamarin.Android.Support.Animated.Vector.Drawable" version="23.3.0" targetFramework="monoandroid70" />
   <package id="Xamarin.Android.Support.Design" version="23.3.0" targetFramework="monoandroid80" />
-  <package id="Xamarin.Android.Support.v4" version="23.3.0" targetFramework="monoandroid70" />
+  <package id="Xamarin.Android.Support.v4" version="28.0.0.1" targetFramework="monoandroid70" />
   <package id="Xamarin.Android.Support.v7.AppCompat" version="23.3.0" targetFramework="monoandroid70" />
   <package id="Xamarin.Android.Support.v7.CardView" version="23.3.0" targetFramework="monoandroid80" />
   <package id="Xamarin.Android.Support.v7.MediaRouter" version="23.3.0" targetFramework="monoandroid80" />