Migrate packages/providers/BlockedNumberProvider to androidx.test

See go/jetpack-test-android-migration

Test: mmma packages/providers/BlockedNumberProvider
Change-Id: Ie84841f282f1092403235bea19c2e082e83b9274
diff --git a/tests/Android.bp b/tests/Android.bp
index e4e57ed..2656ffa 100644
--- a/tests/Android.bp
+++ b/tests/Android.bp
@@ -2,7 +2,7 @@
     name: "BlockedNumberProviderTest",
     static_libs: [
         "mockito-target-minus-junit4",
-        "android-support-test",
+        "androidx.test.rules",
     ],
     libs: [
         "android.test.runner",