Adding support for npm-check-updates within Workspace container.

.env.example

@@ -122,6 +122,7 @@ WORKSPACE_INSTALL_NPM_GULP=true
 WORKSPACE_INSTALL_NPM_BOWER=false
 WORKSPACE_INSTALL_NPM_VUE_CLI=true
 WORKSPACE_INSTALL_NPM_ANGULAR_CLI=false
+WORKSPACE_INSTALL_NPM_CHECK_UPDATES_CLI=false
 WORKSPACE_INSTALL_PHPREDIS=true
 WORKSPACE_INSTALL_WORKSPACE_SSH=false
 WORKSPACE_INSTALL_SUBVERSION=false