ci: add new repos to dependents list (#396)

Author: voxpelli

dependents-data/README.md

@@ -1,5 +1,8 @@
-To find missing modules in workflow-external.json, run from top:
+The files in this folder are not used directly but just used to help inform what modules that might be missing in `../workflow-external.json`.
+
+To update + get a diff, run:
 
 ```sh
+npm run dependents
 jd -set -color <(jq 'map(.) | flatten | sort' workflow-external.json) <(cat dependents-data/filtered.json)
 ```