build(deps): bump github.com/mrz1836/go-whatsonchain

Bumps [github.com/mrz1836/go-whatsonchain](https://github.com/mrz1836/go-whatsonchain) from 0.12.2 to 0.13.0.
- [Release notes](https://github.com/mrz1836/go-whatsonchain/releases)
- [Changelog](https://github.com/mrz1836/go-whatsonchain/blob/master/.goreleaser.yml)
- [Commits](mrz1836/go-whatsonchain@v0.12.2...v0.13.0)

---
updated-dependencies:
- dependency-name: github.com/mrz1836/go-whatsonchain
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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