Update rust version

[saschagrunert]

@rphillips @haircommander @lsm5 I'd like to bump the rust version because many dependencies are not upgradeable right now: https://deps.rs/repo/github/containers/conmon-rs

Do we already know if RHEL8 is the only blocker with 1.58? I assume we could not switch to RHEL9 exclusively, right?

RHEL9 / UBI9 seems to ship at least:

rustc 1.62.1 (Red Hat 1.62.1-1.el9)

[haircommander]

I assume we could not switch to RHEL9 exclusively, right?

this is an interesting idea. We could consider only supporting newer rustc versions and only have support downstream when a new enough version is available

[lsm5]

centos 8 stream is now on rust 1.66.1. So I think we should be ok. Did you see 1.58 recently on rhel 8 ?

[saschagrunert]

@lsm5 indeed, we should now have a chance to upgrade: https://access.redhat.com/downloads/content/rust/1.66.1-1.module+el8.8.0+17810+1556a031/x86_64/fd431d51/package