update dependencies to work with update eth-block-extractor

pkg/fakes/mock_rpc_client.go

@@ -187,3 +187,7 @@ func (client *MockRPCClient) AssertBatchCalledWith(method string, lengthOfBatch
 	}
 	Expect(client.passedMethod).To(Equal(method))
 }
+
+func (client *MockRpcClient) Subscribe(namespace string, payloadChan interface{}, args ...interface{}) (*rpc.ClientSubscription, error) {
+	panic("implement me")
+}