build(deps): bump signature from 1.3.0 to 1.3.1 (#172)
build(deps): bump signature from 1.3.0 to 1.3.1 (#172)

Bumps [signature](https://github.com/RustCrypto/traits) from 1.3.0 to 1.3.1.
- [Release notes](https://github.com/RustCrypto/traits/releases)
- [Commits](https://github.com/RustCrypto/traits/compare/signature-v1.3.0...signature-v1.3.1)

---
updated-dependencies:
- dependency-name: signature
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
project-oak/tink-rust,project-oak/tink-rust,project-oak/tink-rust