Add @Test and @Ignore to untested test methods in RequestPinItemTest.

Error prone complains when trying to merge launcher3 code to platform pi-dev.

"This looks like a test method but is not run; please add @Test and @Ignore,
or, if this is a helper method, reduce its visibility."

Output:

Executing tasks: [:assembleGoogleDebug, :assembleGoogleDebugAndroidTest]
Gradle build finished in 1s 631ms
Tests Ignored: 1 passed, 4 ignored

Bug: 78589564
Change-Id: Icde57fd8307e1ef409822d1417f629cd1aaa57ba
diff --git a/tests/src/com/android/launcher3/ui/widget/RequestPinItemTest.java b/tests/src/com/android/launcher3/ui/widget/RequestPinItemTest.java
index dba6db3..dcb564a 100644
--- a/tests/src/com/android/launcher3/ui/widget/RequestPinItemTest.java
+++ b/tests/src/com/android/launcher3/ui/widget/RequestPinItemTest.java
@@ -45,6 +45,7 @@
 import com.android.launcher3.widget.WidgetCell;
 
 import org.junit.Before;
+import org.junit.Ignore;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -81,6 +82,7 @@
     @Test
     public void testEmpty() throws Throwable { /* needed while the broken tests are being fixed */ }
 
+    @Test @Ignore
     public void testPinWidgetNoConfig() throws Throwable {
         runTest("pinWidgetNoConfig", true, new ItemOperator() {
             @Override
@@ -93,6 +95,7 @@
         });
     }
 
+    @Test @Ignore
     public void testPinWidgetNoConfig_customPreview() throws Throwable {
         // Command to set custom preview
         Intent command =  RequestPinItemActivity.getCommandIntent(
@@ -110,6 +113,7 @@
         }, command);
     }
 
+    @Test @Ignore
     public void testPinWidgetWithConfig() throws Throwable {
         runTest("pinWidgetWithConfig", true, new ItemOperator() {
             @Override
@@ -122,6 +126,7 @@
         });
     }
 
+    @Test @Ignore
     public void testPinShortcut() throws Throwable {
         // Command to set the shortcut id
         Intent command = RequestPinItemActivity.getCommandIntent(