Bump yargs from 15.0.1 to 15.0.2 in /arctic/static/arctic

Bumps [yargs](https://github.com/yargs/yargs) from 15.0.1 to 15.0.2.
- [Release notes](https://github.com/yargs/yargs/releases)
- [Changelog](https://github.com/yargs/yargs/blob/master/CHANGELOG.md)
- [Commits](yargs/yargs@v15.0.1...v15.0.2)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

arctic/static/arctic/package.json

@@ -24,7 +24,7 @@
     "sass-burger": "^1.3.1",
     "selectize": "^0.12.5",
     "sortablejs": "^1.10.1",
-    "yargs": "^15.0.1"
+    "yargs": "^15.0.2"
   },
   "devDependencies": {
     "babel-plugin-transform-es2015-modules-strip": "^0.1.1",