OZG-4718 PR applying naming conventions

src/test/java/de/ozgcloud/einstellung/AdministrationApplicationTests.java

@@ -4,9 +4,9 @@ import org.junit.jupiter.api.Test;
 import org.springframework.boot.test.context.SpringBootTest;
 
 @SpringBootTest
-class AdministrationApplicationTests {
+class AdministrationApplicationTest {
 
 	@Test
-	void contextLoads() { // NOSONAR
+	void shouldSpringContextLoad() { // NOSONAR
 	}
 }