[zlib] Re-sync with zlib 1.2.12, patch 3 of N

Ported:
- Avoid some conversion warnings in gzread.c and gzwrite.c
- Update use of errno for newer Windows CE versions
- Return an error if the gzputs string length can't fit in an int

Bug: 1032721
Change-Id: I84189ebed1bca346b37221b3325249f14fd2d4c2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3562224


Reviewed-by: Noel Gordon <noel@chromium.org>
Commit-Queue: Adenilson Cavalcanti <cavalcantii@chromium.org>
Cr-Commit-Position: refs/heads/main@{#987459}
NOKEYCHECK=True
GitOrigin-RevId: 89fbba72b6026853d33b661d9c0c9c67f2dc57be