Roll gn from b2d77ab13731 to 61a0153b5e60

https://gn.googlesource.com/gn.git/+log/b2d77ab13731..61a0153b5e60

2021-07-19 [email protected] Add 'rustenv' to 'gn desc' output

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/gn-chromium-autoroll
Please CC [email protected],[email protected] 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: [email protected],[email protected]
Change-Id: Icbc2a6e9649b55c0b73cc0584b262e869a3de64e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3040039
Commit-Queue: chromium-autoroll <[email protected]>
Bot-Commit: chromium-autoroll <[email protected]>
Reviewed-by: Dirk Pranke <[email protected]>
Cr-Commit-Position: refs/heads/master@{#903249}
diff --git a/DEPS b/DEPS
index 1ea31e8..9db2014 100644
--- a/DEPS
+++ b/DEPS
@@ -408,7 +408,7 @@
   'libcxx_revision':       '79a2e924d96e2fc1e4b937c42efd08898fa472d7',
 
   # GN CIPD package version.
-  'gn_version': 'git_revision:b2d77ab1373192d1532af94b68fb8bab727b0e5b',
+  'gn_version': 'git_revision:61a0153b5e60f11100a04e51393cae15268d1ee3',
 }
 
 # Only these hosts are allowed for dependencies in this DEPS file.