replace spring-security-test by spring-boot-starter-security-test

as mentioned in https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-4.0-Migration-Guide#test-code

Author: dennisvang

pom.xml

@@ -260,8 +260,8 @@
             <scope>test</scope>
         </dependency>
         <dependency>
-            <groupId>org.springframework.security</groupId>
-            <artifactId>spring-security-test</artifactId>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-security-test</artifactId>
             <scope>test</scope>
         </dependency>
         <dependency>