Bump luxon from 2.0.1 to 2.4.0 in /awx/ui

Bumps [luxon](https://github.com/moment/luxon) from 2.0.1 to 2.4.0.
- [Release notes](https://github.com/moment/luxon/releases)
- [Changelog](https://github.com/moment/luxon/blob/master/CHANGELOG.md)
- [Commits](https://github.com/moment/luxon/compare/2.0.1...2.4.0)

---
updated-dependencies:
- dependency-name: luxon
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

awx/ui/package.json

@@ -15,13 +15,13 @@
     "ansi-to-html": "0.7.2",
     "axios": "0.22.0",
     "codemirror": "^5.47.0",
-    "d3": "7.1.1",
+    "d3": "7.4.4",
     "dagre": "^0.8.4",
     "formik": "2.2.9",
     "has-ansi": "5.0.1",
     "html-entities": "2.3.2",
     "js-yaml": "^3.13.1",
-    "luxon": "^2.0.1",
+    "luxon": "^2.4.0",
     "prop-types": "^15.6.2",
     "react": "17.0.2",
     "react-ace": "^9.3.0",