Update Maven dependencies: Spring security

bookstore/pom.xml

@@ -61,6 +61,16 @@
 			<groupId>com.h2database</groupId>
 			<artifactId>h2</artifactId>
 		</dependency>
+		
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-security</artifactId>
+		</dependency>
+		
+		<dependency>
+			<groupId>org.thymeleaf.extras</groupId>
+			<artifactId>thymeleaf-extras-springsecurity5</artifactId>
+		</dependency>
 
 	</dependencies>