add snyk testing for /auth

[snesm]

This PR add Snyk testing of /auth

If you are suggesting a fix for a currently exploitable issue, please disclose the issue to the prime-reportstream team directly outside of GitHub instead of filing a PR, so we may immediately patch the affected systems before a disclosure. See SECURITY.md/Reporting a Vulnerability for more information.

Test Steps:

1. Include steps to test these changes

Changes

• Include a comprehensive list of changes in this PR
• (For web UI changes) Include screenshots/video of changes

Checklist

Testing

• Tested locally?
• Ran ./prime test or ./gradlew testSmoke against local Docker ReportStream container?
• (For Changes to /frontend-react/...) Ran npm run lint:write?
• Added tests?

Process

• Are there licensing issues with any new dependencies introduced?
• Includes a summary of what a code reviewer should test/verify?
• Updated the release notes?
• Database changes are submitted as a separate PR?
• DevOps team has been notified if PR requires ops support?

Linked Issues

• Fixes #issue

To Be Done

Create GitHub issues to track the work remaining, if any

• #issue

Specific Security-related subjects a reviewer should pay specific attention to

• Does this PR introduce new endpoints?
  • new endpoint A
  • new endpoint B
• Does this PR include changes in authentication and/or authorization of existing endpoints?
• Does this change introduce new dependencies that need vetting?
• Does this change require changes to our infrastructure?
• Does logging contain sensitive data?
• Does this PR include or remove any sensitive information itself?

If you answered 'yes' to any of the questions above, conduct a detailed Review that addresses at least:

• What are the potential security threats and mitigations? Please list the STRIDE threats and how they are mitigated
  • Spoofing (faking authenticity)
    • Threat T, which could be achieved by A, is mitigated by M
  • Tampering (influence or sabotage the integrity of information, data, or system)
  • Repudiation (the ability to dispute the origin or originator of an action)
  • Information disclosure (data made available to entities who should not have it)
  • Denial of service (make a resource unavailable)
  • Elevation of Privilege (reduce restrictions that apply or gain privileges one should not have)
• Have you ensured logging does not contain sensitive data?
• Have you received any additional approvals needed for this change?