feat: use rustls instead of openssl #581
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What 💻
This PR drops openssl from dependency tree in favor of rustls. Needs matter-labs/zksync-era#3568 to be merged first and a subsequent zksync-era release to be cut after that. Opening a PR now so we don't forget about this.
Another important change in this PR is getting rid of cross. IMHO no reason to use it if we are not linking with anything other than glibc (and even that is unnecessary, see my comment in GHA workflow). Also, it is borderline unmaintained as they have been struggling to update their Docker images from
ubuntu:20.04
for many years.Why ✋
Statically linking openssl is error-prone, also anvil uses rustls over openssl too