[Dev Deps] update js-yaml

Author: ljharb

Diff for: package.json

@@ -26,7 +26,7 @@
   "devDependencies": {
     "concat-stream": "~1.6.0",
     "falafel": "~2.1.0",
-    "js-yaml": "~3.9.1",
+    "js-yaml": "~3.10.0",
     "tap": "~8.0.1",
     "tap-parser": "~3.0.4"
   },