Add instruction to install Rosetta for MacOS ARM

[0xferit]

What was wrong?

Executable does not work on MacOS ARM unless Rosetta is installed. The user guide does not mention this detail.

How was it fixed?

Added the instruction and warning about this issue to the installation guide.

[0xferit]

CI / lint fails for a totally irrelevant reason. Perhaps running the workflow again will make it resolve by itself.

error: unnecessarily eager cloning of iterator items --> crates/test-utils/src/lib.rs:565:9	565	/ data.iter() 566		.cloned() 567		.filter(	val	{ 568		// ethabi doesn't yet support error types so we just filter them out for now 569		// https://github.com/rust-ethereum/ethabi/issues/225 570		val["type"] != "error" 571		})		__^

= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_overeager_cloned
= note: `-D clippy::iter-overeager-cloned` implied by `-D clippy::all`
= help: to override `-D clippy::all` add `#[allow(clippy::iter_overeager_cloned)]`

help: try	565 ~ data.iter().filter(	&val	{ 566 + // ethabi doesn't yet support error types so we just filter them out for now 567 + // https://github.com/rust-ethereum/ethabi/issues/225 568 + val["type"] != "error" 569 + }).cloned()

error: could not compile fe-compiler-test-utils (lib) due to previous error warning: build failed, waiting for other jobs to finish... Error: Process completed with exit code 101.

[cburgdorf]

This looks like a new clippy check (clippy isn'f fixed to a specific version in CI) that needs to be satisfied. Nothing that needs to be added to this PR but the PR will eventually need to be rebased when the fix lands in master.

[cburgdorf]

@0xferit The issue is resolved in latest master. Could you rebase the PR and force push it.

[sbillig]

@0xferit The issue is resolved in latest master. Could you rebase the PR and force push it.

I'm just going to merge this, no need to rebase.