launchpad: update yarn lockfile after bumping contextmenu and modules

Author: juliandescottes

packages/devtools-launchpad/package.json

@@ -56,7 +56,7 @@
     "css-loader": "^0.26.1",
     "devtools-config": "^0.0.15",
     "devtools-connection": "^0.0.6",
-    "devtools-contextmenu": "^0.0.3",
+    "devtools-contextmenu": "^0.0.4",
     "devtools-modules": "^0.0.29",
     "devtools-sprintf-js": "^1.0.3",
     "devtools-utils": "^0.0.5",