Replace deprecated methods

Signed-off-by: Tim Krüger <t@timkrueger.me>

app/src/test/java/com/nextcloud/talk/utils/ShareUtilsTest.kt

@@ -27,8 +27,8 @@ import com.nextcloud.talk.R
 import com.nextcloud.talk.models.database.UserEntity
 import com.nextcloud.talk.models.json.conversations.Conversation
 import com.nextcloud.talk.utils.database.user.UserUtils
-import junit.framework.Assert.assertEquals
 import org.junit.Assert
+import org.junit.Assert.assertEquals
 import org.junit.Before
 import org.junit.Test
 import org.junit.runner.RunWith
@@ -63,7 +63,7 @@ class ShareUtilsTest {
 
     @Before
     fun setUp() {
-        MockitoAnnotations.initMocks(this)
+        MockitoAnnotations.openMocks(this)
         PowerMockito.mockStatic(TextUtils::class.java)
         Mockito.`when`(userUtils!!.currentUser).thenReturn(userEntity)
         Mockito.`when`(userEntity!!.baseUrl).thenReturn(baseUrl)