ORC-2150: Upgrade ZLIB to 1.3.2

### 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

Closes #2602 from dongjoon-hyun/ORC-2150.

Authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>

Author: dongjoon-hyun

cmake_modules/ThirdpartyToolchain.cmake

@@ -24,7 +24,7 @@ set(ORC_INSTALL_INTERFACE_TARGETS)
 set(ORC_FORMAT_VERSION "1.1.1")
 set(LZ4_VERSION "1.10.0")
 set(SNAPPY_VERSION "1.2.2")
-set(ZLIB_VERSION "1.3.1")
+set(ZLIB_VERSION "1.3.2")
 set(GTEST_VERSION "1.17.0")
 set(PROTOBUF_VERSION "3.21.12")
 set(ZSTD_VERSION "1.5.7")