Roll buildtools/ 140e4d7c4..6b3e658d6 (1 commit)

https://chromium.googlesource.com/chromium/src/buildtools.git/+log/140e4d7c45ff..6b3e658d6fe8

Created with:
  roll-dep buildtools

TBR=tsepez@chromium.org

Change-Id: Ibc9f4795ce6f45fc5599f38736315bfe8af98a5a
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/63431
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/DEPS b/DEPS
index ec93dbf..4075e1b 100644
--- a/DEPS
+++ b/DEPS
@@ -15,7 +15,7 @@
   'android_ndk_revision': '89e8db0cdf323af8bc24de875d7d2a43a66bf10e',
   'binutils_revision': '01aa7745b0bab64ae22600f09fd6483c60f22ebf',
   'build_revision': '3ba4b9cdc8c8e763c384a2f3d34a83d4ae4029cb',
-  'buildtools_revision': '140e4d7c45ffb55ce5dc4d11a0c3938363cd8257',
+  'buildtools_revision': '6b3e658d6fe8cd9c2588796d296f07312b776054',
   'catapult_revision': '32775164bd679fbe356576dd17469fb896abbadb',
   'clang_revision': 'fdd60482099e4197bb82d06bfe82315ae2c4b665',
   'code_coverage_revision': 'c7a868bacaccf4f52848e04564fb7de0671e0727',