Roll buildtools/ e72cd4587..be7dcbc36 (16 commits)

https://chromium.googlesource.com/chromium/src/buildtools.git/+log/e72cd4587a1b..be7dcbc36110

Created with:
  roll-dep buildtools

Change-Id: I9ada38f17dbdfc3906e5b22f2cb77ceca05b073d
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/82112
Reviewed-by: Hui Yingst <nigi@chromium.org>
Commit-Queue: Alan Screen <awscreen@chromium.org>
diff --git a/DEPS b/DEPS
index 3481be1..31adabe 100644
--- a/DEPS
+++ b/DEPS
@@ -33,7 +33,7 @@
   # 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': 'e72cd4587a1b833ecf559e4524b69a359cc87697',
+  'buildtools_revision': 'be7dcbc36110b9381f228b8e4ca73ca1db9bf21a',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling catapult
   # and whatever else without interference from each other.