Use npm run start instead of node (#340)

Do not use direct path to execute MTX sidecar, use `npm run start`
instead.

Author: vmikhailenko

integration-tests/pom.xml

@@ -15,7 +15,6 @@
 
 	<properties>
 		<sidecar.dir>../mtx/sidecar</sidecar.dir>
-		<cds.node.executable>node</cds.node.executable>
 	</properties>
 
 	<dependencies>
@@ -111,7 +110,7 @@
 			<plugin>
 				<groupId>org.codehaus.mojo</groupId>
 				<artifactId>exec-maven-plugin</artifactId>
-				<version>3.2.0</version>
+				<version>3.3.0</version>
 				<executions>
 					<execution>
 						<phase>pre-integration-test</phase>
@@ -122,12 +121,12 @@
 					</execution>
 				</executions>
 				<configuration>
-					<executable>${cds.node.executable}</executable>
+					<executable>${cds.npm.executable}</executable>
 					<skip>${skipTests}</skip>
 					<workingDirectory>${sidecar.dir}</workingDirectory>
 					<async>true</async>
 					<useMavenLogger>true</useMavenLogger>
-					<commandlineArgs>node_modules/@sap/cds/bin/cds-serve.js</commandlineArgs>
+					<commandlineArgs>run start</commandlineArgs>
 				</configuration>
 			</plugin>
 		</plugins>