Update DevTools DEPS (trusted)

Rolling buildtools/linux64: git_revision:7a8aa3a08a13521336853a28c46537ec04338a2d..git_revision:18602f6cf1168cf78302024043edc02e8bad2ffb

Rolling buildtools/mac: git_revision:7a8aa3a08a13521336853a28c46537ec04338a2d..git_revision:18602f6cf1168cf78302024043edc02e8bad2ffb

Rolling buildtools/win: git_revision:7a8aa3a08a13521336853a28c46537ec04338a2d..git_revision:18602f6cf1168cf78302024043edc02e8bad2ffb

Roll created at https://cr-buildbucket.appspot.com/build/8720694763098961857

Bug: none
Change-Id: Ic1ff345e2c25f5eba0f5e30ca5ab87c209cc55a0
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/6343630
Commit-Queue: Devtools Autoroller <devtools-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Devtools Autoroller <devtools-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>

Author: devtools-ci-autoroll-builder

DEPS

@@ -32,7 +32,7 @@ vars = {
   'emscripten_tag': 'ade9d780ff17c88d81aa13860361743e3c1e1396',
 
   # GN CIPD package version.
-  'gn_version': 'git_revision:7a8aa3a08a13521336853a28c46537ec04338a2d',
+  'gn_version': 'git_revision:18602f6cf1168cf78302024043edc02e8bad2ffb',
 
   'cmake_version': 'version:[email protected]',