Gateleen Hook Js - Deprecated staticHeaders syntax

AFAIK this is an issue for several years now. Any chance this ever gets cleaned up?

The log-spam is quite annoying.

```
$ cat eagle.log.* | grep -E 'prod eagle WARN HookHandler - you use the deprecated "staticHeaders" syntax in your hook .*"destination":"/eagle/server/event/v1/channels/gateleen-hook-js-' | wc -l
1579819
```

Relates to: SDCISA-21310