Update artifact id spring-cloud-starter-gateway-server-webmvc

samples/backend-for-spa-client/samples-backend-for-spa-client.gradle

@@ -31,5 +31,5 @@ dependencies {
 	implementation "org.springframework.boot:spring-boot-starter-web"
 	implementation "org.springframework.boot:spring-boot-starter-security"
 	implementation "org.springframework.boot:spring-boot-starter-oauth2-client"
-	implementation "org.springframework.cloud:spring-cloud-starter-gateway-mvc"
+	implementation "org.springframework.cloud:spring-cloud-starter-gateway-server-webmvc"
 }