fix: use Cid.Equals()

[codecov-commenter]

Codecov Report

Merging #77 (c6785c8) into master (ecc4261) will not change coverage. The diff coverage is 100.00%.

Additional details and impacted files

[](https://app.codecov.io/gh/filecoin-project/go-amt-ipld/pull/77?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=filecoin-project) ```diff @@ Coverage Diff @@ ## master #77 +/- ## ======================================= Coverage 62.71% 62.71% ======================================= Files 9 9 Lines 1349 1349 ======================================= Hits 846 846 Misses 351 351 Partials 152 152 ``` | [Impacted Files](https://app.codecov.io/gh/filecoin-project/go-amt-ipld/pull/77?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=filecoin-project) | Coverage Δ | | |---|---|---| | [diff.go](https://app.codecov.io/gh/filecoin-project/go-amt-ipld/pull/77?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=filecoin-project#diff-ZGlmZi5nbw==) | `69.40% <100.00%> (ø)` | | | [diff\_parallel.go](https://app.codecov.io/gh/filecoin-project/go-amt-ipld/pull/77?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=filecoin-project#diff-ZGlmZl9wYXJhbGxlbC5nbw==) | `75.37% <100.00%> (ø)` | |

[Stebalien]

https://github.com/filecoin-project/go-hamt-ipld/pull/110#issuecomment-1545751589