mailu/optional
bors[bot] b4f0002e86 Merge
1074: Update traefik-certs-dumper r=muhlemmer a=YouriT

## What type of PR?

bug-fix

## What does this PR do?

Remove a useless dependency & update the command line according to the [latest ldez/traefik-certs-dumper documentation](https://github.com/ldez/traefik-certs-dumper/blob/master/docs/traefik-certs-dumper_file.md).

Co-authored-by: Youri Tolstoy <ytolstoy@gmail.com>
Co-authored-by: Tim Möhlmann <muhlemmer@gmail.com>
..
clamav Revert "Move alpine version definition out to variable"
postgresql Adapt shared layer conf to now really-missing mailustart in admin (after merging webpack)
radicale Revert "Move alpine version definition out to variable"
traefik-certdumper Update run.sh