Bump in-toto from 2.3.0 to 3.0.0

Bumps [in-toto](https://github.com/in-toto/in-toto) from 2.3.0 to 3.0.0.
- [Release notes](https://github.com/in-toto/in-toto/releases)
- [Changelog](https://github.com/in-toto/in-toto/blob/develop/CHANGELOG.md)
- [Commits](in-toto/in-toto@v2.3.0...v3.0.0)

---
updated-dependencies:
- dependency-name: in-toto
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

requirements.txt

@@ -1,2 +1,2 @@
-in-toto==2.3.0
+in-toto==3.0.0
 cryptography==42.0.7