ORC-2150: Upgrade ZLIB to 1.3.2

[dongjoon-hyun]

What changes were proposed in this pull request?

This PR upgrades the C++ ZLIB dependency from 1.3.1 to 1.3.2.

Why are the changes needed?

To keep the dependency up to date with the latest stable release.

• https://www.zlib.net/ChangeLog.txt

Changes in 1.3.2 (17 Feb 2026)
- Continued rewrite of CMake build [Vollstrecker]
- Various portability improvements
- Various github workflow additions and improvements
- Check for negative lengths in crc32_combine functions
- Copy only the initialized window contents in inflateCopy
- Prevent the use of insecure functions without an explicit request
- Add compressBound_z and deflateBound_z functions for large values
- Use atomics to build inflate fixed tables once
- Add definition of ZLIB_INSECURE to build tests with c89 and c94
- Add --undefined option to ./configure for UBSan checker
- Copy only the initialized deflate state in deflateCopy
- Zero inflate state on allocation
- Remove untgz from contrib
- Add _z versions of the compress and uncompress functions
- Vectorize the CRC-32 calculation on the s390x
- Set bit 11 of the zip header flags in minizip if UTF-8
- Update OS/400 support
- Add a test to configure to check for a working compiler
- Check for invalid NULL pointer inputs to zlib operations
- Add --mandir to ./configure to specify manual directory
- Add LICENSE.Info-Zip to contrib/minizip
- Remove vstudio projects in lieu of cmake-generated projects
- Replace strcpy() with memcpy() in contrib/minizip

How was this patch tested?

Existing tests.

Was this patch authored or co-authored using generative AI tooling?

Generated-by: Claude Code

[dongjoon-hyun]

Merged to main/2.3.