Bump deps/zlib from `5c42a23` to `d476828`

[dependabot[bot]]

Bumps deps/zlib from 5c42a23 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.
• 545f194 Add old gcc ULONG_LONG_MAX macro to find a 64-bit type in zutil.h.
• 4cacc35 Add header file dependencies to contrib/minizip/Makefile.
• be24a8f Avoid use of stdint.h in contrib/minizip.
• 164b8e3 Avoid use of uintmax_t in enough.c.
• 3f44e55 Add required gzguts.h dependencies in Makefile.in.
• ceadaf2 Fix test/infcover.c function prototype when ZLIB_CONST defined.
• Additional commits viewable in compare view

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