Update @mojs/core to 1.6.0

Author: xavierfoucrier

package-lock.json

@@ -33,7 +33,7 @@
     "vuepress": "^1.9.7"
   },
   "dependencies": {
-    "@mojs/core": "^1.5.1",
+    "@mojs/core": "^1.6.0",
     "@mojs/curve-editor": "^1.7.1",
     "@mojs/player": "^1.1.0",
     "@vuepress/shared-utils": "^1.8.2",