Polish "Provide dependency management for JUnit Jupiter"

Closes gh-10240

Author: snicoll

spring-boot-dependencies/pom.xml

@@ -124,8 +124,8 @@
 		<jstl.version>1.2</jstl.version>
 		<jtds.version>1.3.1</jtds.version>
 		<junit.version>4.12</junit.version>
-		<junit.jupiter.version>5.0.0</junit.jupiter.version>
-		<junit.platform.version>1.0.0</junit.platform.version>
+		<junit-jupiter.version>5.0.0</junit-jupiter.version>
+		<junit-platform.version>1.0.0</junit-platform.version>
 		<lettuce.version>5.0.0.RC2</lettuce.version>
 		<liquibase.version>3.5.3</liquibase.version>
 		<log4j2.version>2.9.0</log4j2.version>
@@ -933,20 +933,25 @@
 				<artifactId>junit</artifactId>
 				<version>${junit.version}</version>
 			</dependency>
-			<dependency>
-				<groupId>org.junit.platform</groupId>
-				<artifactId>junit-platform-launcher</artifactId>
-				<version>${junit.platform.version}</version>
-			</dependency>
 			<dependency>
 				<groupId>org.junit.jupiter</groupId>
 				<artifactId>junit-jupiter-api</artifactId>
-				<version>${junit.jupiter.version}</version>
+				<version>${junit-jupiter.version}</version>
 			</dependency>
 			<dependency>
 				<groupId>org.junit.jupiter</groupId>
 				<artifactId>junit-jupiter-engine</artifactId>
-				<version>${junit.jupiter.version}</version>
+				<version>${junit-jupiter.version}</version>
+			</dependency>
+			<dependency>
+				<groupId>org.junit.platform</groupId>
+				<artifactId>junit-platform-engine</artifactId>
+				<version>${junit-platform.version}</version>
+			</dependency>
+			<dependency>
+				<groupId>org.junit.platform</groupId>
+				<artifactId>junit-platform-launcher</artifactId>
+				<version>${junit-platform.version}</version>
 			</dependency>
 			<dependency>
 				<groupId>mysql</groupId>

spring-boot-samples/spring-boot-sample-junit-jupiter/pom.xml

@@ -68,7 +68,7 @@
 					<dependency>
 						<groupId>org.junit.platform</groupId>
 						<artifactId>junit-platform-surefire-provider</artifactId>
-						<version>${junit.platform.version}</version>
+						<version>${junit-platform.version}</version>
 					</dependency>
 				</dependencies>
 			</plugin>