Bumped version to 2.24.0alpha4

Author: mikehardy

AnkiDroid/build.gradle

@@ -89,9 +89,9 @@ android {
         //
         // This ensures the correct ordering between the various types of releases (dev < alpha < beta < release) which is
         // needed for upgrades to be offered correctly.
-        versionCode=22400103
+        versionCode=22400104
         // If you change this to a new version, you probably also want to update .gradle/workflows/milestone.yml for the new version...
-        versionName="2.24.0alpha3"
+        versionName="2.24.0alpha4"
         minSdk = libs.versions.minSdk.get().toInteger()
 
         // After #13695: change .tests_emulator.yml