new redirects for www.d.o/security and www.d.o/lts/security

Hi all,

we now redirect all DSA/DLA URLs under security and lts/security with
or without having the year in the path and with or without a version
to their announcement mail:
Examples:
/security/dsa-5576
/security/2023/dsa-5576-2
lts/security/2023/dla-3686-1
lts/security/dla-3686

All URLs like dsa-5576-2 or dla-3686-1 are redirected to the specified
versions of the DSA. A URL containing only a DSA/DLA number but no
version currently redirect to version -1. In the future it may
redirect to the most recent version.
All redirects are not case sensitive.


@security-tracker admins:
A page like https://security-tracker.debian.org/tracker/DSA-5576
redirects to
https://security-tracker.debian.org/tracker/DSA-5576-2
On this page you have a link to the "Source  Debian" which is a link to
https://www.debian.org/security/2023/dsa-5576.
Currently this is a wrong link to dsa-5576-1.

The easiest way would be to make the "Source Debian" links always
redirect to the announcement number including the version, but without
the year. So for
https://security-tracker.debian.org/tracker/DSA-5576-2
change this link to
https://www.debian.org/security/DSA-5576-2
similar for the DLAs and so on.