Bug#1049413: librsvg: Update to 2.56 or later

[Jeremy Bícha]

On Tue, Aug 15, 2023 at 1:19 PM Simon McVittie <smcv at debian.org> wrote:
> Given the policy that Jeremy linked to, I imagine Ubuntu will want to
> produce a fully-vendored tarball, even if Debian does not.

I briefly mentioned this issue to Ubuntu's Main Inclusion team today
and their Rust vendoring policy might be relaxed in the future, but it
will take time and work to figure out the many details.

Thank you,
Jeremy Bícha