Grant `POST_NOTIFICATIONS` permission in instrumented tests

feature/foryou/src/androidTest/java/com/google/samples/apps/nowinandroid/feature/foryou/ForYouScreenTest.kt

@@ -16,6 +16,7 @@
 
 package com.google.samples.apps.nowinandroid.feature.foryou
 
+import android.Manifest
 import androidx.activity.ComponentActivity
 import androidx.compose.foundation.layout.BoxWithConstraints
 import androidx.compose.ui.test.assertHasClickAction
@@ -28,6 +29,8 @@ import androidx.compose.ui.test.onFirst
 import androidx.compose.ui.test.onNodeWithContentDescription
 import androidx.compose.ui.test.onNodeWithText
 import androidx.compose.ui.test.performScrollToNode
+import androidx.test.rule.GrantPermissionRule
+import androidx.test.rule.GrantPermissionRule.grant
 import com.google.samples.apps.nowinandroid.core.testing.data.followableTopicTestData
 import com.google.samples.apps.nowinandroid.core.testing.data.userNewsResourcesTestData
 import com.google.samples.apps.nowinandroid.core.ui.NewsFeedUiState
@@ -35,6 +38,10 @@ import org.junit.Rule
 import org.junit.Test
 
 class ForYouScreenTest {
+
+    @get:Rule
+    val permissionTestRule: GrantPermissionRule = grant(Manifest.permission.POST_NOTIFICATIONS)
+
     @get:Rule
     val composeTestRule = createAndroidComposeRule<ComponentActivity>()