Update uiautomator references in frameworks/base

* Replace "androidx.test.uiautomator" (v2.2.0) with
  "androidx.test.uiautomator_uiautomator" (v2.3.0).

Bug: 247008528
Test: presubmit
Change-Id: I3d4de8bd97144d44f6b699a5c4e0acde380d9d60
diff --git a/packages/SystemUI/Android.bp b/packages/SystemUI/Android.bp
index 104998c..0333b2d 100644
--- a/packages/SystemUI/Android.bp
+++ b/packages/SystemUI/Android.bp
@@ -228,7 +228,7 @@
         "metrics-helper-lib",
         "hamcrest-library",
         "androidx.test.rules",
-        "androidx.test.uiautomator",
+        "androidx.test.uiautomator_uiautomator",
         "mockito-target-extended-minus-junit4",
         "testables",
         "truth-prebuilt",