rust: Update to 1.65

rust: Update to 1.65

For details see:
https://github.com/rust-lang/rust/blob/stable/RELEASES.md#version-1650-2022-11-03

I started updating rust to 1.65 mainly because 'clamav 0.105.1-3' and the
shortly thereafter released version 'clamav 1.0.0' need at least 'rust 1.56':
"Building ClamAV requires, at a minimum, Rust compiler version 1.56, as it
relies on features introduced in the Rust 2021 Edition."

At this point we were still on 'nightly 2022-01-27'. Ok then...

But it was a bit more tricky than I thought, because this update wouldn't build without
patching most of the existing rust-crate-lfs files in a way I didn't expect.
Please note the patch series following this update...

Nevertheless, the update to 1.65 and ALL testbuilds completed without any errors.

Unfortunately, I can only provide the rootfile for x86_64 - I don't have the appropriate hardware
for anything else.

Signed-off-by: Matthias Fischer <matthias.fischer@ipfire.org>