Bump github.com/google/go-cmp from 0.5.9 to 0.6.0 (#101)

Bumps [github.com/google/go-cmp](https://github.com/google/go-cmp) from 0.5.9 to 0.6.0.
- [Release notes](https://github.com/google/go-cmp/releases)
- [Commits](google/go-cmp@v0.5.9...v0.6.0)

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

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Co-authored-by: Youjung Kim <126618609+ykim-1@users.noreply.github.com>