Skip PersistentIntTest on S- device

This class is only used in the service runs on T+ devices.
Thus run this test on S- device does not make senses.

Ignore-AOSP-First: in a topic with internal-only changes
Bug: 230289468
Test: atest ConnectivityCoverageTests:PersistentIntTest
      on S device
Change-Id: I97a29df17ef9ee9ab373655f045cdb5c820e06ef
diff --git a/tests/unit/java/com/android/server/net/PersistentIntTest.kt b/tests/unit/java/com/android/server/net/PersistentIntTest.kt
index 9509d38..9268352 100644
--- a/tests/unit/java/com/android/server/net/PersistentIntTest.kt
+++ b/tests/unit/java/com/android/server/net/PersistentIntTest.kt
@@ -17,10 +17,14 @@
 package com.android.server.net
 
 import android.util.SystemConfigFileCommitEventLogger
+import com.android.testutils.DevSdkIgnoreRule.IgnoreUpTo
+import com.android.testutils.DevSdkIgnoreRunner
+import com.android.testutils.SC_V2
 import com.android.testutils.assertThrows
 import org.junit.After
 import org.junit.Before
 import org.junit.Test
+import org.junit.runner.RunWith
 import java.io.File
 import java.io.IOException
 import java.nio.file.Files
@@ -32,6 +36,8 @@
 import java.util.Random
 import kotlin.test.assertEquals
 
+@RunWith(DevSdkIgnoreRunner::class)
+@IgnoreUpTo(SC_V2)
 class PersistentIntTest {
     val tempFilesCreated = mutableSetOf<Path>()
     lateinit var tempDir: Path
@@ -124,4 +130,4 @@
             tempFilesCreated.add(it)
         }
     }
-}
\ No newline at end of file
+}