Roll SK Tool from 9a963c3542ab to 83d167c8dec8

https://skia.googlesource.com/buildbot.git/+log/9a963c3542ab..83d167c8dec8

2021-07-22 borenet@google.com [infra] Roll back Python to 3.8.10

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/sk-tool-skia
Please CC lovisolo@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Tbr: lovisolo@google.com
Change-Id: I841dad5a1d3aef1d4799949730c6a107a2c716ff
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/431346
Reviewed-by: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
diff --git a/DEPS b/DEPS
index 12c8d7b..cdd97d1 100644
--- a/DEPS
+++ b/DEPS
@@ -6,7 +6,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling different
   # dependencies without interference from each other.
-  'sk_tool_revision': 'git_revision:82a43529dda7c5489b5cb95d3f3bf2e42bf1c0ac',
+  'sk_tool_revision': 'git_revision:83d167c8dec86a687170a81c1cd19ffc6eeab705',
 }
 
 deps = {