chore(deps): bump tuf from 3.0.0 to 3.1.0 (#562)

Bumps [tuf](https://github.com/theupdateframework/python-tuf) from 3.0.0 to 3.1.0.
- [Release notes](https://github.com/theupdateframework/python-tuf/releases)
- [Changelog](https://github.com/theupdateframework/python-tuf/blob/develop/docs/CHANGELOG.md)
- [Commits](theupdateframework/python-tuf@v3.0.0...v3.1.0)

---
updated-dependencies:
- dependency-name: tuf
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Radoslav Dimitrov <[email protected]>

Author: dependabot[bot]

requirements-test.txt

@@ -2,4 +2,4 @@ iso8601==2.0.0
 requests==2.31.0
 securesystemslib==0.30.0
 six==1.16.0
-tuf==3.0.0
+tuf==3.1.0