Roll third_party/zlib/ 8603eee37..f87c8e288 (3 commits)

https://chromium.googlesource.com/chromium/src/third_party/zlib.git/+log/8603eee37c4f..f87c8e28893b

Created with:
  roll-dep third_party/zlib

Tbr: dhoss@chromium.org
Change-Id: I3e2c0437f767efc4a0eefa077a3133374c424a07
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/72354
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>

DEPS

diff --git a/DEPS b/DEPS
index 962b196..c479483 100644
--- a/DEPS
+++ b/DEPS
@@ -115,7 +115,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling zlib
   # and whatever else without interference from each other.
-  'zlib_revision': '8603eee37c4f4dd3e033d06fa18ea34ed9b41f41',
+  'zlib_revision': 'f87c8e28893b1eb7cacf8043200f8daaef21a680',
 }
 
 deps = {