[Bug]: Update security.txt Expires field

[tcitworld]

The Expires field from security.txt should be updated regularly to make sure information is not stale.

It is RECOMMENDED that the value of this field be less than a year into the future to avoid staleness.

https://datatracker.ietf.org/doc/html/rfc9116#section-2.5.5

Is there a way of automating this to have an up-to-date value at each major release? Or at least add the update to the release steps?

server/apps/settings/lib/WellKnown/SecurityTxtHandler.php

Line 41 in afdb75d

Expires: 2021-12-31T23:00:00.000Z

We could also add the following lines:

Preferred-Languages: en
Hiring: https://nextcloud.com/jobs/

[szaimen]

cc @nickvergessen @miaulalala @julien-nc

[nickvergessen]

Is there a way of automating this to have an up-to-date value at each major release?

I will add it to the list of things to do when we branch off. That should always be within the next 6 months and then we just backport it to all supported maintenance releases