Bump deps/zlib from ed16107 to 7108497 (#144)

Bumps [deps/zlib](https://github.com/madler/zlib) from `ed16107` to
`7108497`.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/madler/zlib/commit/7108497fda9d4536a1afade7f42266e06dca4488"><code>7108497</code></a>
Check that HAVE_UNISTD_H and HAVE_STDARG_H are not defined as 0.</li>
<li><a
href="https://github.com/madler/zlib/commit/00161eff1de25e9eed56bffdbe58f2c07ca16e51"><code>00161ef</code></a>
Do not look for zconf.h in the source directory.</li>
<li><a
href="https://github.com/madler/zlib/commit/8a844d434f0eef87d972ae6406b00968f7c52944"><code>8a844d4</code></a>
Use zconf.h instead of zconf.h.in for cmake.</li>
<li><a
href="https://github.com/madler/zlib/commit/d20659fc74975e27962655d1b337da8cf3646638"><code>d20659f</code></a>
Repair MinGW cmake build.</li>
<li><a
href="https://github.com/madler/zlib/commit/0b29118367551a44612a725970f7f6ff258cab06"><code>0b29118</code></a>
Fix Ada bindings on x64.</li>
<li><a
href="https://github.com/madler/zlib/commit/c715ad71fe514b5e7768b1b334fc0b09f35842a3"><code>c715ad7</code></a>
Restore zconf.h to distribution.</li>
<li>See full diff in <a
href="https://github.com/madler/zlib/compare/ed1610791c0c681ee562bb3997e0f29bfae11b2d...7108497fda9d4536a1afade7f42266e06dca4488">compare
view</a></li>
</ul>
</details>
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</details>