Update Spring IO Platform Version to Brussels-SR4

Author: igdianov

graphql-jpa-query-example/pom.xml

@@ -38,7 +38,7 @@
             <plugin>
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-maven-plugin</artifactId>
-                <!--version>1.5.7.RELEASE</version-->
+                <version>1.5.6.RELEASE</version>
                 <executions>
                     <execution>
                         <goals>

pom.xml

@@ -37,7 +37,7 @@
 			<dependency>
 				<groupId>io.spring.platform</groupId>
 				<artifactId>platform-bom</artifactId>
-				<version>Brussels-SR1</version>
+				<version>Brussels-SR4</version>
 				<type>pom</type>
 				<scope>import</scope>
 			</dependency>