chore: fix checkstyle

Author: SteKoe

spring-boot-admin-server-ui/src/test/java/de/codecentric/boot/admin/server/ui/AdminUiServletApplicationTest.java

@@ -23,7 +23,7 @@
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.boot.builder.SpringApplicationBuilder;
 import org.springframework.context.ConfigurableApplicationContext;
-^import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
 import org.springframework.security.web.SecurityFilterChain;