ci: use awalsh128/cache-apt-pkgs-action@latest to cache apt install

[kkysen]

We already use this GitHub Action on other projects like IA2 and rav1d.

[kkysen]

@thedataking, can you allow awalsh128/cache-apt-pkgs-action to use, since we already use it in IA2 and rav1d? Also, if you're already doing that, can you also allow dtolnay/rust-toolchain? It's used by most rust-lang/ repos.

[thedataking]

I've whitelisted awalsh128/cache-apt-pkgs-action.

Why do you need dtolnay/rust-toolchain? I'd like to understand the need before we polish our CI actions further.

(we have Swatinem/rust-cache@v2 enabled in case that's relevant.)

[kkysen]

Why do you need dtolnay/rust-toolchain? I'd like to understand the need before we polish our CI actions further.

(we have Swatinem/rust-cache@v2 enabled in case that's relevant.)

We actually don't. rust-cache covers it, I just had to reverse the order of the steps. So we should be all good now. Thanks!

[kkysen]

I've whitelisted awalsh128/cache-apt-pkgs-action.

Still seems to be blocked 😞 https://github.com/immunant/c2rust/actions/runs/16515868669. Not sure why. Is there something I need to update? I just rebased.

[thedataking]

Still seems to be blocked 😞

I think I forgot to press save. My bad, very sorry 😞

[kkysen]

I think I forgot to press save. My bad, very sorry 😞

😆 https://github.com/immunant/c2rust/actions/runs/16516133789 I tried closing and reopening the PR, but it/s still denying it.