Roll third_party/depot_tools/ df01c5ad5..c9a747c5e (55 commits; 12 trivial rolls)

https://chromium.googlesource.com/chromium/tools/depot_tools.git/+log/df01c5ad5be4..c9a747c5ed64

Created with:
  roll-dep third_party/depot_tools

Change-Id: I2a226f4c1ec9148c3191fbd56427969f45e44364
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/91092
Reviewed-by: Nigi <nigi@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/DEPS b/DEPS
index f23913b..382336d 100644
--- a/DEPS
+++ b/DEPS
@@ -65,7 +65,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling depot_tools
   # and whatever else without interference from each other.
-  'depot_tools_revision': 'df01c5ad5be408cd157b879a1cce983f90762765',
+  'depot_tools_revision': 'c9a747c5ed646001df33e798c62bbac0d27c8d08',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling freetype
   # and whatever else without interference from each other.