Roll third_party/zlib/ 64bbf9885..c4e126880 (1 commit)

https://chromium.googlesource.com/chromium/src/third_party/zlib.git/+log/64bbf9885439..c4e126880ba3

Created with:
  roll-dep third_party/zlib

Change-Id: I27abc80b6ce1b95233e761e2285b268b32fbcb9b
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/95893
Commit-Queue: Nigi <nigi@chromium.org>
Reviewed-by: Nigi <nigi@chromium.org>
diff --git a/DEPS b/DEPS
index 6e607db..da6edb4 100644
--- a/DEPS
+++ b/DEPS
@@ -146,7 +146,7 @@
   # 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': '64bbf988543996eb8df9a86877b32917187eba8f',
+  'zlib_revision': 'c4e126880ba30375c69a4ddf2d42274da1600f67',
 }
 
 # Only these hosts are allowed for dependencies in this DEPS file.