Bump to xamarin/xamarin-android-tools/main@f4c44e2a (#6829)

jonpryor · web-flow · commit 90d6630a94fa · 2022-03-15T08:41:30.000-04:00
Changes: dotnet/android-tools@f0b3abd...f4c44e2 * dotnet/android-tools@f4c44e2: [Xamarin.Android.Tools.AndroidSdk] Attributes can be null! (#158)
diff --git a/external/xamarin-android-tools b/external/xamarin-android-tools
@@ -1 +1 @@
-Subproject commit f0b3abdb7600bc47be8696bab2c170d849283f06
+Subproject commit f4c44e2ac2d91396226f31e8c200464ecc65f648
