Alexander

**Describe the bug** Sandcat agent fails on startup when `whoami` command is not found on the platform. https://github.com/mitre/sandcat/blob/e903198c4e0a197e8df1e04bbf8c3324107afe6f/gocat/agent/agent_util.go#L15 **To Reproduce** Steps to reproduce the behavior: 1. Temp remove `whoami` e.g....