Bumps [github.com/secure-systems-lab/go-securesystemslib](https://github.com/secure-systems-lab/go-securesystemslib) from 0.3.0 to 0.3.1.
- [Release notes](https://github.com/secure-systems-lab/go-securesystemslib/releases)
- [Commits](https://github.com/secure-systems-lab/go-securesystemslib/compare/v0.3.0...v0.3.1

)

---
updated-dependencies:
- dependency-name: github.com/secure-systems-lab/go-securesystemslib
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>