change luxon version to match others

Signed-off-by: Jeremy Guarini <jguarini@paloaltonetworks.com>

plugins/code-coverage/package.json

@@ -33,7 +33,7 @@
     "@material-ui/lab": "4.0.0-alpha.57",
     "@material-ui/styles": "^4.11.0",
     "highlight.js": "^10.6.0",
-    "luxon": "^2.1.0",
+    "luxon": "^2.0.2",
     "react": "^16.13.1",
     "react-dom": "^16.13.1",
     "react-router": "6.0.0-beta.0",