Bump deps/zlib from `545f194` to `d476828`

[dependabot[bot]]

Bumps deps/zlib from 545f194 to d476828.

Commits

• d476828 Repair github workflows for their updated macOS runner gcc name.
• f7d01aa Avoid out-of-bounds pointer arithmetic in inflateCopy().
• 2968a49 Remove unneeded dependency on limits.h in examples/zran.c.
• fff132f Avoid the use of a reserved macro name in contrib/minizip/ioapi.h.
• See full diff in compare view

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