Support for specifying scsast controller URL for sc-sast-scan

[crance]

Enhancement Request

The native scancentral cli supports either specifying SSC_URL or SCSAST Controller URL (henceforth SCSAST_URL).

Currently, if SSC_URL is specified in the native scancentral cli, it will retrieve the SCSAST_URL setting configured in SSC.
In some environments, SCSAST_URL specified in SSC could be using internal DNS/IP (or even k8s cluster name).
In such scenario, the resolved SCSAST_URL will be an internal DNS/IP, and hence not accessible via GitHub.

The current workaround is use fortify/github-action/setup to install sc-client and run the native scancentral command via shell.
A reusable GitHub action approach would be nice.

[rsenden]

Sorry for the delay; as this will need to be implemented in fcli, I've created a new issue on the fcli repo with similar contents.