ci
: Add shellcheck step to lint job
#464
Merged
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#lintallthethings!
We lint code, why not shell scripts? In addition to simplifying the avoidance of common shell errors, the shellcheck wiki has lots of documentation for all the error types it checks for.
Testing
In addition to CI, local testing on arm64 linux and macos verified the logic for downloading and using a local (vs one in the path) shellcheck.
Related: AvalancheGo PR