Add the GitHub CLI to the global workflow env

[eap]

This change adds the GitHub CLI to the global workflow env. Go language based dependencies don't compile on the intel stack, so some intel-specific config has been added to force the use of an alternate GCC compiler. This change has been tested in GCC and Intel on an Ubuntu 24.04 site config.

Testing

As above, tested in Ubuntu on GCC/Intel

Applications affected

Global Workflow Env.

Systems affected

N/A

Dependencies

None

Issue(s) addressed

Fixes: #1105

Checklist

• This PR addresses one issue/problem/enhancement, or has a very good reason for not doing so.
• These changes have been tested on the affected systems and applications.
• All dependency PRs/issues have been resolved and this PR can be merged.

[climbfuji]

The intel build fails because it can't build grep. I am pretty sure that we can assume grep is available as an external package on all systems.

[eap]

@climbfuji I'm going to fix that anyways; we are observing the same grep issue on our Ubuntu site config (see discussion here - Steve has also verified that he is seeing it).

[eap]

Ok, I've added the fix to this PR. No idea why this issue is showing up now but it seems to be affecting many intel builds and the fix is pretty easy.

[climbfuji]

This PR is blocked by #1419