tools/zlib: update to 1.3

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

Signed-off-by: Nick Hainke <vincent@systemli.org>

tools/zlib/Makefile

@@ -8,12 +8,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=zlib
-PKG_VERSION:=1.2.13
+PKG_VERSION:=1.3
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=https://github.com/madler/zlib/releases/download/v$(PKG_VERSION)
-PKG_HASH:=d14c38e313afc35a9a8760dadf26042f51ea0f5d154b0630a31da0540107fb98
+PKG_HASH:=8a9ba2898e1d0d774eca6ba5b4627a11e5588ba85c8851336eb38de4683050a7
 
 PKG_LICENSE:=Zlib
 PKG_LICENSE_FILES:=README