This PR adds vulnxscan support for whitelisting vulnerabilities as documented in vulnxscan README.md.
In addition, this PR includes the following smaller changes:
Fixes to documentation.
Increase local cache expiration time from one to two hours. In addition, for nix_secupdates.py, if github query rate is exceeded, retry after a timeout instead of immediately giving up.
Remove test_nix_shell which caused duplicate dependency to sbomnix.
This PR adds vulnxscan support for whitelisting vulnerabilities as documented in vulnxscan README.md.
In addition, this PR includes the following smaller changes: