[fenix] Closes https://github.com/mozilla-mobile/fenix/issues/21438: Ignore intermittently failing ExceptionsListItemViewHolderTest

app/src/test/java/org/mozilla/fenix/exceptions/viewholders/ExceptionsListItemViewHolderTest.kt

@@ -17,6 +17,7 @@ import mozilla.components.browser.icons.IconRequest
 import mozilla.components.ui.widgets.WidgetSiteItemView
 import org.junit.Assert.assertNotNull
 import org.junit.Before
+import org.junit.Ignore
 import org.junit.Test
 import org.mozilla.fenix.exceptions.ExceptionsInteractor
 
@@ -50,6 +51,7 @@ class ExceptionsListItemViewHolderTest {
     }
 
     @Test
+    @Ignore("Intermittent failing test on JDK11: https://github.com/mockk/mockk/issues/598")
     fun `delete button calls interactor`() {
         var clickListener: ((View) -> Unit)? = null
         val exception = Exception()