Migrate cts/tests/providerui to androidx.test

See go/jetpack-test-android-migration

Test: compile
Change-Id: I5a6b3832a8b4cb00e0422c80ddba0f6b4118f873
diff --git a/tests/providerui/AndroidManifest.xml b/tests/providerui/AndroidManifest.xml
index 4051b24..0698151 100644
--- a/tests/providerui/AndroidManifest.xml
+++ b/tests/providerui/AndroidManifest.xml
@@ -37,7 +37,7 @@
         </provider>
     </application>
 
-    <instrumentation android:name="android.support.test.runner.AndroidJUnitRunner"
+    <instrumentation android:name="androidx.test.runner.AndroidJUnitRunner"
                      android:targetPackage="android.providerui.cts"
                      android:label="CTS UI tests of android.provider">
         <meta-data android:name="listener"