Connectivity: remove usages of deprecated Mockito matchers

Upstream Mockito has deleted the deprecated matchers. Migrates usage to replacements
to unblock upgrade.

Test: m checkbuild
Flag: TEST_ONLY
Bug: 310268946
Change-Id: Ib23cb8e29175edb631cd6517754758424764edb4
diff --git a/tests/unit/java/com/android/server/ConnectivityServiceTest.java b/tests/unit/java/com/android/server/ConnectivityServiceTest.java
index 5d08807..9538055 100755
--- a/tests/unit/java/com/android/server/ConnectivityServiceTest.java
+++ b/tests/unit/java/com/android/server/ConnectivityServiceTest.java
@@ -12312,7 +12312,7 @@
         final NetworkAgent naNoExtraInfo = new TestNetworkAgent(
                 mServiceContext, mCsHandlerThread.getLooper(), new NetworkAgentConfig());
         naNoExtraInfo.register();
-        verify(mNetworkStack).makeNetworkMonitor(any(), isNull(String.class), any());
+        verify(mNetworkStack).makeNetworkMonitor(any(), isNull(), any());
         naNoExtraInfo.unregister();
 
         reset(mNetworkStack);