Update Mockito version

src/test/java/fr/xephi/authme/service/BukkitServiceTest.java

@@ -13,7 +13,7 @@ import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.Mock;
-import org.mockito.runners.MockitoJUnitRunner;
+import org.mockito.junit.MockitoJUnitRunner;
 
 import java.util.Collection;
 

src/test/java/fr/xephi/authme/service/GeoIpServiceTest.java

@@ -8,7 +8,7 @@ import org.junit.Test;
 import org.junit.rules.TemporaryFolder;
 import org.junit.runner.RunWith;
 import org.mockito.Mock;
-import org.mockito.runners.MockitoJUnitRunner;
+import org.mockito.junit.MockitoJUnitRunner;
 
 import java.io.File;
 import java.io.IOException;

src/test/java/fr/xephi/authme/service/MigrationServiceTest.java

@@ -13,7 +13,7 @@ import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.Mock;
 import org.mockito.invocation.InvocationOnMock;
-import org.mockito.runners.MockitoJUnitRunner;
+import org.mockito.junit.MockitoJUnitRunner;
 import org.mockito.stubbing.Answer;
 
 import java.util.Arrays;

src/test/java/fr/xephi/authme/service/TeleportationServiceTest.java

@@ -18,7 +18,7 @@ import org.mockito.ArgumentCaptor;
 import org.mockito.InjectMocks;
 import org.mockito.Mock;
 import org.mockito.invocation.InvocationOnMock;
-import org.mockito.runners.MockitoJUnitRunner;
+import org.mockito.junit.MockitoJUnitRunner;
 import org.mockito.stubbing.Answer;
 
 import java.util.Arrays;