package/acl: bump to version 2.3.2
See release announcement [1].
This commit also updates the _SITE variable to match the download URL
published in the release announcement in [1]. The package homepage is
also updated to match the one published at [2]. The main motivation
of those URL updates is to switch to https.
[1] https://lists.nongnu.org/archive/html/acl-devel/2024-01/msg00012.html
[2] https://git.savannah.nongnu.org/cgit/acl.git/tree/README?h=v2.3.2#n4
Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>