Upgrade zlib to 1.3.1, from 1.2.13

Changes in 1.3.1 (22 Jan 2024)

• Reject overflows of zip header fields in minizip
• Fix bug in inflateSync() for data held in bit buffer
• Add LIT_MEM define to use more memory for a small deflate speedup
• Fix decision on the emission of Zip64 end records in minizip
• Add bounds checking to ERR_MSG() macro, used by zError()
• Neutralize zip file traversal attacks in miniunz
• Fix a bug in ZLIB_DEBUG compiles in check_match()
• Various portability and appearance improvements

Changes in 1.3 (18 Aug 2023)

• Remove K&R function definitions and zlib2ansi
• Fix bug in deflateBound() for level 0 and memLevel 9
• Fix bug when gzungetc() is used immediately after gzopen()
• Fix bug when using gzflush() with a very small buffer
• Fix crash when gzsetparams() attempted for transparent write
• Fix test/example.c to work with FORCE_STORED
• Rewrite of zran in examples (see zran.c version history)
• Fix minizip to allow it to open an empty zip file
• Fix reading disk number start on zip64 files in minizip
• Fix logic error in minizip argument processing
• Add minizip testing to Makefile
• Read multiple bytes instead of byte-by-byte in minizip unzip.c
• Add memory sanitizer to configure (--memory)
• Various portability improvements
• Various documentation improvements
• Various spelling and typo corrections