adding the pull command to our npm scripts

package.json

@@ -7,6 +7,7 @@
 	"prettier": "@wordpress/prettier-config",
 	"scripts": {
 		"sandbox:clean": "./sandbox.sh clean",
+		"sandbox:pull": "./sandbox.sh pull",
 		"sandbox:push": "./sandbox.sh push",
 		"sandbox:push:ignore": "./sandbox.sh push --ignore",
 		"sandbox:push:force": "./sandbox.sh push --force",