OZG-3931 [bescheid-manager] add bean validation dependency

bescheid-manager/pom.xml

@@ -66,7 +66,10 @@
 			<groupId>org.springframework.security</groupId>
 			<artifactId>spring-security-core</artifactId>
 		</dependency>
-
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-validation</artifactId>
+		</dependency>
 		<dependency>
 			<groupId>org.mapstruct</groupId>
 			<artifactId>mapstruct</artifactId>