update zlib to 1.3.1

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 71.10%. Comparing base (481935d) to head (a3f138b).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## release/2.3.2 #376 +/- ## ============================================== Coverage 71.10% 71.10% ============================================== Files 271 271 Lines 30307 30307 ============================================== Hits 21551 21551 Misses 8756 8756 ```

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