chore: change to WebEnvironment.MOCK in tests. (#113)

It fixes migration to next vaadin version 24.4.x
See: vaadin/hilla#2169

Author: manolo

complete/src/test/java/com/example/crudwithvaadin/MainViewTests.java

@@ -18,7 +18,7 @@
 import org.junit.jupiter.api.Test;
 import org.mockito.Mockito;
 
-@SpringBootTest(classes = MainViewTests.Config.class, webEnvironment = SpringBootTest.WebEnvironment.NONE)
+@SpringBootTest(classes = MainViewTests.Config.class, webEnvironment = SpringBootTest.WebEnvironment.MOCK)
 public class MainViewTests {
 
 	@Autowired CustomerRepository repository;