Add support for GHSA (GitHub Security Advisories) and OSV (Open Source
Vulnerabilities) as structured reference types in Metasploit modules.
Convert 49 hardcoded GHSA URLs to structured ['GHSA', 'GHSA-xxxx'] format
across existing modules, and add support for repository-specific GHSA
references with an optional third parameter ['GHSA', 'GHSA-xxxx', 'repo'].
Update reference validation, module validator, and info_fixups to handle
the new reference types correctly.
Spencer McIntyre