Migrated the following modules to parent-boot with spring-boot 2.1:

* spring-5-reactive-client
* spring-5-reactive-security
* spring-5-security
* spring-5-security-oauth
* spring-all

spring-5-security/pom.xml

@@ -10,9 +10,9 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-boot-2.0-temp</artifactId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
-        <relativePath>../parent-boot-2.0-temp</relativePath>
+        <relativePath>../parent-boot-2</relativePath>
     </parent>
 
     <dependencies>
@@ -31,7 +31,7 @@
         </dependency>
         <dependency>
             <groupId>org.thymeleaf.extras</groupId>
-            <artifactId>thymeleaf-extras-springsecurity4</artifactId>
+            <artifactId>thymeleaf-extras-springsecurity5</artifactId>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>