BAEL-10887 Let's fix the compilation issue in spring-cloud/spring-cloud-security/auth-client module

- Added the missing dependencies that were causing compilation issues

spring-cloud/spring-cloud-security/auth-client/pom.xml

@@ -5,8 +5,8 @@
     <artifactId>auth-client</artifactId>
     <packaging>jar</packaging>
     <name>auth-client</name>
-	<description>Spring Cloud Security APP Client Module</description>
-	
+    <description>Spring Cloud Security APP Client Module</description>
+
     <parent>
         <artifactId>spring-cloud-security</artifactId>
         <groupId>com.baeldung</groupId>
@@ -61,6 +61,10 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-thymeleaf</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.security.oauth</groupId>
+            <artifactId>spring-security-oauth2</artifactId>
+        </dependency>
     </dependencies>
 
     <build>