upgrade spring boot to 2.1.4

pom.xml

@@ -17,7 +17,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.1.1.RELEASE</version>
+		<version>2.1.4.RELEASE</version>
 		<relativePath /> <!-- lookup parent from repository -->
 	</parent>
 
@@ -248,6 +248,10 @@
 			<artifactId>junit-platform-runner</artifactId>
 			<scope>test</scope>
 		</dependency>
+		<dependency>
+			<groupId>org.junit.platform</groupId>
+			<artifactId>junit-platform-launcher</artifactId>
+		</dependency>
 	</dependencies>
 
 	<dependencyManagement>