Bump vergen from 8.2.6 to 8.3.1 (hyperledger-iroha#4471)

Bumps [vergen](https://github.com/rustyhorde/vergen) from 8.2.6 to 8.3.1.
- [Release notes](https://github.com/rustyhorde/vergen/releases)
- [Commits](rustyhorde/vergen@8.2.6...8.3.1)

---
updated-dependencies:
- dependency-name: vergen
  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>