Set jupiter dependencies as optional. Remove boot plugin dependency from

wiremock standalone sample.

samples/wiremock/pom.xml

@@ -72,10 +72,6 @@
 
 	<build>
 		<plugins>
-			<plugin>
-				<groupId>org.springframework.boot</groupId>
-				<artifactId>spring-boot-maven-plugin</artifactId>
-			</plugin>
 			<plugin>
 				<artifactId>maven-deploy-plugin</artifactId>
 				<configuration>

spring-cloud-contract-stub-runner/pom.xml

@@ -156,10 +156,12 @@
 		<dependency>
 			<groupId>org.junit.jupiter</groupId>
 			<artifactId>junit-jupiter-engine</artifactId>
+			<optional>true</optional>
 		</dependency>
 		<dependency>
 			<groupId>org.junit.jupiter</groupId>
 			<artifactId>junit-jupiter-api</artifactId>
+			<optional>true</optional>
 		</dependency>
 	</dependencies>
 	<build>