mailu/core
bors[bot] f0188d9623
Merge
2034: Add timezone to containers r=mergify[bot] a=DjVinnii

## What type of PR?

Enhancement

## What does this PR do?
This PR adds the tzdata package so that the environment variable `TZ` can be used to set the timezone of containers.

### Related issue(s)
- closes  

## Prerequisites
Before we can consider review and merge, please make sure the following list is done and checked.
If an entry in not applicable, you can check it or remove it from the list.

- [x] In case of feature or enhancement: documentation updated accordingly
- [x] Unless it's docs or a minor change: add [changelog](https://mailu.io/master/contributors/workflow.html#changelog) entry file.


Co-authored-by: DjVinnii <vincentkling@msn.com>
..
admin Merge
dovecot Set default TZ in Dockerfiles
nginx Set default TZ in Dockerfiles
none Give alpine 3.14.2 a shot
postfix Set default TZ in Dockerfiles
rspamd Merge