fix failing ConnectionValidatorTest;

Signed-off-by: Stefan Maute <stefan.maute@bosch.io>

services/connectivity/messaging/src/test/java/org/eclipse/ditto/services/connectivity/messaging/validation/ConnectionValidatorTest.java

@@ -109,7 +109,7 @@ public static void tearDown() {
     @Before
     public void before() {
         connectivityConfigProvider = Mockito.mock(ConnectivityConfigProvider.class);
-        Mockito.when(connectivityConfigProvider.getConnectivityConfig(CONNECTION_ID))
+        Mockito.when(connectivityConfigProvider.getConnectivityConfig(CONNECTION_ID, DittoHeaders.empty()))
                 .thenReturn(CONNECTIVITY_CONFIG_WITH_ENABLED_BLOCKLIST);
     }