Add CI check back

[AgeManning]

I removed this CI check: https://github.com/sigp/anchor/blob/unstable/.github/workflows/test-suite.yml#L129

Because of multiple lighthouse dependencies. It was required because I feature gated slog out of the task executor, but other lighthouse crates still use slog.

Once lighthouse transitions from slog, this won't be necessary and we can add this CI check back.

[magick93]

This is added in the mega PR -

anchor/.github/workflows/test-suite.yml

Line 131 in f35765e

- name: Run cargo audit