Merge #3839

3839: fix #3836: healthcheck of clamav r=mergify[bot] a=nextgens

## What type of PR?

bug-fix

## What does this PR do?

Fix the healthcheck of clamav

### Related issue(s)
- closes #3836 
- closes #3823
- closes #3741

## 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.

- [ ] 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: Florent Daigniere <nextgens@freenetproject.org>

setup/flavors/compose/docker-compose.yml

@@ -227,12 +227,6 @@ services:
       - clamav
     volumes:
       - "{{ root }}/clamav:/var/lib/clamav"
-    healthcheck:
-      test: ["CMD-SHELL", "kill -0 `cat /tmp/clamd.pid` && kill -0 `cat /tmp/freshclam.pid`"]
-      interval: 10s
-      timeout: 5s
-      retries: 3
-      start_period: 10s
   {% endif %}
 
   {% if webdav_enabled %}

towncrier/newsfragments/3836.misc

@@ -0,0 +1 @@
+Remove the healthcheck section of clamav: use upstream's