Roll third_party/depot_tools/ 6f2321d1d..de9b59989 (54 commits; 20 trivial rolls)

https://chromium.googlesource.com/chromium/tools/depot_tools.git/+log/6f2321d1de69..de9b59989f05

Created with:
  roll-dep third_party/depot_tools

Change-Id: I3fbb495aefefc980701a57b2b5e3a7a930f55a04
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/101915
Reviewed-by: Nigi <nigi@chromium.org>
Auto-Submit: Lei Zhang <thestig@chromium.org>
Commit-Queue: Nigi <nigi@chromium.org>
diff --git a/DEPS b/DEPS
index 907bbd4..f924830 100644
--- a/DEPS
+++ b/DEPS
@@ -66,7 +66,7 @@
   # 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': '6f2321d1de694d4ca56784ba8b5634f9ca74b3a6',
+  'depot_tools_revision': 'de9b59989f05253625a73a204387f031c3d3b703',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling freetype
   # and whatever else without interference from each other.