Bump NodeJS to LTS v10 per WP Core

ntwb · ntwb · commit e6d7cd37a071 · 2019-07-01T12:43:39.000+10:00
diff --git a/package.json b/package.json
@@ -18,7 +18,7 @@
 	"license": "MIT",
 	"main": "Gruntfile.js",
 	"engines": {
-		"node": ">= 8.9.3"
+		"node": ">= 10"
 	},
 	"scripts": {
 		"test": "jest",
