Bump projects/scanning/vulns/tsunami-security-scanner

Bumps [projects/scanning/vulns/tsunami-security-scanner](https://github.com/google/tsunami-security-scanner) from `d741561` to `c8751e1`.
- [Release notes](https://github.com/google/tsunami-security-scanner/releases)
- [Commits](google/tsunami-security-scanner@d741561...c8751e1)

---
updated-dependencies:
- dependency-name: projects/scanning/vulns/tsunami-security-scanner
  dependency-version: c8751e1597a1bffad5748dae27b9fbed6f42f885
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]