Adding TZ Env to ChadBurn Captain file (#661)

The captainfile didn't use `$$cap_tz` and without the `TZ` env varriable alpine stays in UTC.

With this fix, the container will now have the proper timezone set.

public/v4/apps/chadburn.yml

@@ -5,6 +5,8 @@ services:
         image: ghcr.io/premoweb/chadburn:$$cap_version
         volumes:
             - /var/run/docker.sock:/var/run/docker.sock
+        environment:
+            TZ: '$$cap_tz'
         caproverExtra:
             notExposeAsWebApp: 'true'
 caproverOneClickApp: