[VIRTS-4690] Add Architecture Header to Sandcat

[bleepbop]

Description

Allows users to supply an architecture header to sandcat. This will allow Darwin ARM64 users to successfully compile sandcat without emulation.

Additionally, an architecture key has been added to the sandcat ability file. The frontend can later be modified to use this, so that users can select platform and architecture on the agents page. Currently, all sandcat commands are being listed, but they have been labeled as (ARM64) or (AMD64).

Includes modifications to #423.

Type of change

• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

How Has This Been Tested?

Ran all of new agent commands for ARM64, and ran a few abilities with each. Agents compiled successfully and were able to transmit data successfully as well. When running file splunkd, the output verified that the agent was compiled for ARM64.

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works

[elegantmoose]

Code looked good but I could not test out ARM on my Mac.

[clenk]

The original PR also updated update-agents.sh and the list of precompiled binaries on the docs page - can you update those as well?

For the docs page, I would prefer adding architecture to the list of parameters and explaining it there instead of at the top of the Options section.

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[clenk]

LGTM!