Roll buildtools/ ff93f3ea1..4be464e05 (3 commits)

https://chromium.googlesource.com/chromium/src/buildtools.git/+log/ff93f3ea1a7f..4be464e050b3

Created with:
  roll-dep buildtools

Change-Id: Ie31d3bc4fe6c61a9ca643d9c1a3340bc11b06d81
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/74473
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Hui Yingst <nigi@chromium.org>
diff --git a/DEPS b/DEPS
index 93eaebb..6945685 100644
--- a/DEPS
+++ b/DEPS
@@ -39,7 +39,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling buildtools
   # and whatever else without interference from each other.
-  'buildtools_revision': 'ff93f3ea1a7f033d3caf8f60ec1937cc71351419',
+  'buildtools_revision': '4be464e050b3d05060471788f926b34c641db9fd',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling catapult
   # and whatever else without interference from each other.