[FEAT] Possibility to set timezone for log output

[schlegel11]

Is this a new feature request?

• I have searched the existing issues

Wanted change

It would be nice to have the possibility to set different timezones for the timestamp in haproxy log output.

Reason for change

Correct timestamp in logs when a service tries to access the docker socket.

Proposed code change

Maybe via tzdata package and ENV variable e.g.: -e 'TZ'='Europe/Berlin'

[github-actions]

Thanks for opening your first issue here! Be sure to follow the relevant issue templates, or risk having this issue marked as invalid.