Roll Zlib from fef58692c1d7 to dfc48fc4de8e (2 revisions)

https://chromium.googlesource.com/chromium/src/third_party/zlib.git/+log/fef58692c1d7..dfc48fc4de8e

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/zlib-pdfium
Please CC pdfium-reviews+autoroller@googlegroups.com,thestig@chromium.org on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://issues.skia.org/issues/new?component=1389291&template=1850622

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Bug: None
Tbr: pdfium-reviews+autoroller@googlegroups.com
Change-Id: I589ee69b917b6e0e2825ff3920def4f38a8e9890
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/113030
Commit-Queue: pdfium-autoroll <pdfium-autoroll@skia-public.iam.gserviceaccount.com>
Bot-Commit: pdfium-autoroll <pdfium-autoroll@skia-public.iam.gserviceaccount.com>
diff --git a/DEPS b/DEPS
index 1088cae..f63f684 100644
--- a/DEPS
+++ b/DEPS
@@ -194,7 +194,7 @@
   # 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': 'fef58692c1d7bec94c4ed3d030a45a1832a9615d',
+  'zlib_revision': 'dfc48fc4de8e80416606e2aab42f430ced2a524e',
 }
 
 # Only these hosts are allowed for dependencies in this DEPS file.